Week 2 Code Examples

backwardsd_pyramid.c 
#include <stdio.h>

int main(void) {
    int i = 5;
    while (i >= 1) {
        int j = 5;
        while (j > 5 - i) {
            printf("%d ", j);
            j--;
        }
        printf("\n");
        i--;
    }
    return 0;
}
blocks.c 
#include <stdio.h> 

int main(void) {
    int answer = 10;
    if (answer == 12) {
        printf("12 is the number\n");
    }
    else {
        printf("12 is not the number\n");
    }
    if (answer % 2 == 0) {
        printf("That's even steven\n");
    }
    else {
        printf("That's pretty odd\n");
    }
    return 0;
}
condition_example.c 
#include <stdio.h>

int main(void) {
    int sum = 0;
    int to_add;
    while (sum < 1000) {
        printf("Enter a number to add: ");
        scanf("%d", &to_add);
        sum = sum + to_add;
    }
    printf("Our total sum was %d\n", sum);
    return 0;
}
conditional_loop.c 
#include <stdio.h>

int main(void) {
    int sum = 0;
    int adder = 0;
    while (sum < 100) {
        printf("Please enter a number: ");
        scanf("%d", &adder);
        sum = sum + adder;
    }
    return 0;
}
conditional_loop_example.c 
#include <stdio.h>

int main(void) {
    int total_seasons_watched = 0;
    int seasons_watched;
    while (total_seasons_watched < 50) {
        printf("You've currently watched %d seasons of Survivor, not good enough!\n", total_seasons_watched);
        printf("How many seasons of Survivor have you watched since last lecture? ");
        scanf("%d", &seasons_watched);
        if (seasons_watched >= 1) {
            total_seasons_watched = total_seasons_watched + seasons_watched;
        }
        else if (seasons_watched == 0) {
            printf("C'mon, you can do better!\n");
        }
        else {
            printf("You can't un-watch Survivor, don't be silly!\n");
        }
    }
    return 0;
}
count_sheep.c 
#include <stdio.h>

int main(void) {
    int sheep_count = 0;
    while (sheep_count < 10) {
        if (sheep_count < 5) {
            printf("I'm wide awake, I've only counted %d sheep!\n", sheep_count);
        }
        else {
            printf("I'm getting so very eepy, I've counted %d sheep!\n", sheep_count);
        }
        sheep_count++;
    }
    printf("zzzzzzzzzzzz\n");
    return 0;
}
counting_example.c 
#include <stdio.h>

int main(void) {
    int count = 0;
    while (count < 10) {
        printf("Count is currently %d\n", count);
        count = count + 5;
    }
    return 0;
}
counting_loop.c 
#include <stdio.h>

int main(void) {
    int counter = 1;
    while (counter < 5) {
        printf("Printed %d times\n", counter);
        counter = counter + 1
    }
    return 0;
}
else_if_statements.c 
#include <stdio.h>

int main(void) {
    int answer = 12;
    if (answer == 10) {
        printf("The answer is 10!\n");
    }
    else if (answer == 12) {
        printf("The answer is 12!\n");
    }
    else {
        printf("The answer is not 10!\n");
    }
    return 0;
}
else_statements.c 
#include <stdio.h>

int main(void) {
    int answer = 12;
    if (answer == 10) {
        printf("The answer is 10!\n");
    }
    else {
        printf("The answer is not 10!\n");
    }
    return 0;
}
enums.c 
#include <stdio.h>

enum weekdays {MON, TUE, WED, THURS, FRI, SAT, SUN};

int main(void) {
    enum weekdays day;
    day = SAT;
    printf("The day of the week is %d\n", day);
    return 0;
}
enums_fun.c 
#include <stdio.h>

enum pokemon {VICTINI, BULBASAUR, IVYSAUR, VENUSAUR, CHARMANDER, CHARMELEON, CHARIZARD, SQUIRTLE, WARTOTLE, BLASTOISE, CATERPIE, METAPOD, BUTTERFREE,
            WEEDLE, KAKUNA, BEEDRILL, PIDGEY, PIDGEOTTO, PIDGEOT, RATTATA, RATICATE, NIDORAN_M, NIDORINO, NIDOKING, NIDORAN_F, NIDORINA,
            NIDOQUEEN, PIKACHU, RAICHU, EKANS, ARBOK};

int main(void) {
    enum pokemon pokedex_number = PIKACHU;
    printf("That Pokemon's Pokedex number is %d\n", pokedex_number);
    return 0;
}
enums_lecture.c 
#include <stdio.h>



int main(void) {
    return 0;
}
enums_survivor.c 
#include <stdio.h>

enum survivor_seasons {BORNEO = 1, THE_AUSTRALIAN_OUTBACK, AFRICA, MARQUESAS, THAILAND, AMAZON, PEARL_ISLANDS, ALL_STARS, VANUATU, PALAU,
                        GUATEMALA, PANAMA, COOK_ISLANDS, FIJI, CHINA, MICRONESIA, GABON, TOCANTINS, SAMOA, HEROES_VS_VILLAINS,
                        NICARAGUA, REDEMPTION_ISLAND, SOUTH_PACIFIC, ONE_WORLD, PHILIPPINES, CARAMOAN, BLOOD_VS_WATER, CAGAYANA,
                        SAN_JUAN_DEL_SUR, WORLDS_APART, CAMBODIA, KAOH_RONG, MILLENIALS_VS_GEN_X, GAME_CHANGERS, HEROES_VS_HEALERS_VS_HUSTLERS,
                        GHOST_ISLAND, DAVID_VS_GOLIATH, EDGE_OF_EXTINCTION, ISLAND_OF_THE_IDOLS, WINNERS_AT_WAR, _41, _42, _43, _44, _45, _46,
                        _47, _48, _49, _50_IN_THE_HANDS_OF_THE_FANS};

enum australian_survivor_seasons {_2016 = 1, _2017, CHAMPIONS_VS_CONTENDERS, CHAMPIONS_VS_CONTENDERS_2, ALL_STARS_AUS, BRAINS_VS_BRAWN, 
                                    BLOOD_VS_WATER_AUS, HEROES_VS_VILLAINS_AUS, TITANS_VS_REBELS, BRAINS_VS_BRAWN_2, VS_THE_WORLD,
                                    REDEMPTIONS};

int main(void) {
    enum survivor_seasons season = _41;
    enum australian_survivor_seasons aus_season = TITANS_VS_REBELS;
    printf("season %d of Australian Survivor is great!\n", aus_season);
    if (season > ISLAND_OF_THE_IDOLS) {
        printf("Everything around here is kinda mid\n");
    }
    else {
        printf("Season %d is good!\n", season);
    }
    return 0;
}
grid.c 
#include <stdio.h>

int main(void) {
    int grid_size;
    printf("Enter a number for the grid: ");
    scanf("%d", &grid_size);
    int j = 1;
    while (j <= grid_size) {
        int i = 1;
        while (i <= grid_size) {
            printf("%d ", i);
            i++;
        }
        printf("\n");
        j++;
    }
    return 0;
}
if_char.c 
#include <stdio.h>

int main(void) {
    char letter;
    printf("Enter a letter: ");
    scanf(" %c", &letter);
    if (letter < 67 || letter > 67) {
        printf("We've avoided the brainrot letter!\n");
    }
    else {
        printf("Darn\n");
    }
}
if_chars_letters.c 
#include <stdio.h> 

int main(void) {
    char letter;
    printf("Enter a letter: ");
    scanf(" %c", &letter);
    if (letter == 'H' || letter == 'Y' || letter == 'E' || letter == 'N' || letter == 'R') {
        printf("Those letters are in HENRY!\n");
    }
    else if (letter == 'A' || letter == 'L' || letter == 'E' || letter == 'X') {
        printf("Those letters are in ALEX!\n");
    }
    else {
        printf("You hate the coolest twins in the world!\n");
    }
    return 0;
}
if_demo.c 
#include <stdio.h> 

int main(void) {
    int fav_number;
    printf("Enter your favourite number: ");
    scanf("%d", &fav_number);
    if (fav_number == 67) {
        printf("Okay then, moving on...\n");
    }
    else if (fav_number == 66) {
        printf("The Jedi better watch out!\n");
    }
    else {
        printf("Yippee, brainrot has not claimed another victim!\n");
    }
    printf("Thanks for partaking in our survey!\n");
    return 0;
}
if_in_if.c 
#include <stdio.h>

int main(void) {
    int answer = 12;
    int answer2 = 10;
    if (answer == 12) {
        if (answer2 == 10) {
            printf("Two ifs were true\n");
        }
        else {
            printf("One if was true\n");
        }
    }
    else {
        printf("No ifs were true\n");
    }
    return 0;
}
if_statements.c 
#include <stdio.h>

int main(void) {
    int answer = 10;
    if (answer == 10) {
        printf("The answer is 10!\n");
    }
    return 0;
}
if_survivor.c 
#include <stdio.h>

int main(void) {
    int fav_season;
    printf("Enter your favourite Survivor season: ");
    scanf("%d", &fav_season);
    if (fav_season == 1) {
        printf("That's Survivor Borneo!\n");
    }
    else if (fav_season == 2) {
        printf("That's Survivor The Australian Outback!\n");
    }
    else if (fav_season == 3) {
        printf("That's Survivor Africa!\n");
    }
    else {
        printf("I ran out of energy to write all these if statements\n");
    }
    return 0;
}
infinite_loop.c 
#include <stdio.h>

int main(void) {
    int flag = 1;
    while (flag == 1) {
        printf("Learning C is fun!\n");
    }
    return 0;
}
infinity.c 
#include <stdio.h>

int main(void) {
    int answer = 13;
    while (answer == 13) {
        printf("uh oh\n");
    }
    return 0;
}
lec_begin.c 
#include <stdio.h>

int main(void) {
    int answer;
    printf("Enter an answer here: ");
    scanf("%d", &answer);
    if (answer % 2 == 0 && answer >= 100) {
        printf("I have learnt...something...\n");
    } 
    else if (answer % 2 == 1) {
        printf("I know that my number is odd, it may be more than 100, we don't know\n");
    }
    else {
        printf("I know my number is < 100, and isn't odd\n");
    }
    return 0;
}
logical_operators.c 
#include <stdio.h> 

int main(void) {
    int user_answer;
    printf("Gimme a number: ");
    scanf("%d", &user_answer);
    if (user_answer % 2 == 0 && user_answer >= 16) {
        printf("You've found the answer!\n");
    }
    else {
        printf("You haven't found the answer yet!\n");
    }
    return 0;
}
looping.c 
#include <stdio.h>

int main(void) {
    int answer = 12;
    // When will this loop end? HINT - Never
    while (answer == 12) {
        printf("This will take a while\n");
    }
    return 0;
}
more_enums.c 
#include <stdio.h>

enum survivor {BORNEO = 1, THE_AUSTRALIAN_OUTBACK, AFRICA, MARQUESAS, THAILND, AMAZON, PEARL_ISLANDS, ALL_STARS,
                VANUATU, PALAU, GUATEMALA, PANAMA, COOK_ISLANDS, FIJI, CHINA, MICRONESIA, GABON, TOCANTINS, SAMOA,
                HEROES_VS_VILLAINS, NICARAGUA, REDEMPTIONS_ISLAND, SOUTH_PACIFIC, ONE_WORLD, PHILIPPINES, CARAMOAN,
                BLOOD_VS_WATER, CAGAYAN, SAN_JUAN_DEL_SUR, WORLDS_APART, CAMBODIA, KAOH_RONG, MILLENIALS_VS_GEN_X,
                GAME_CHANGERS, HEROES_VS_HEALERS_VS_HUSTLERS, GHOST_ISLAND, DAVID_VS_GOLIATH, EDGE_OF_EXTINCTION,
                ISLAND_OF_THE_IDOLS, WINNERS_AT_WAR, _41, _42, _43, _44, _45, _46, _47, _48, _49, _50_IN_THE_HANDS_OF_THE_FANS};

int main(void) {
    enum survivor season;
    season = GABON;
    printf("Survivor Season %d is good!\n", season);
    return 0;
}
nested_if.c 
#include <stdio.h>

int main(void) {
    int answer = 12;
    if (answer == 12) {
        if (answer % 2 == 0) {
            if (answer % 3 == 0) {
                printf("You are both 12, and even, and divisible by 3\n");
            }
        }
    }
    return 0;
}
pyramid.c 
#include <stdio.h>

int main(void) {
    int i = 1;
    while (i <= 5) {
        int j = 1;
        while (j <= i) {
            printf("%d ", j);
            j++;
        }
        printf("\n");
        i++;
    }
    return 0;
}
recap.c 
#include <stdio.h> 

int main(void) {
    int num1 = 10;
    int num2; 
    printf("Enter the second number: ");
    scanf("%d", &num2);
    printf("The result of your number, multiplied by %d, is %d!\n", num1, num1 * num2);
    return 0;
}
recap_input.c 
#include <stdio.h>

int main(void) {
    char character;
    printf("Enter a character: ");
    scanf("%c", &character);
    printf("The character you entered, shifted by 1, is %c!\n", character + 1);
    return 0;
}
recap_input_lf.c 
#include <stdio.h>

int main(void) {
    double user_input;
    printf("Enter a double: ");
    scanf("%lf", &user_input);
    printf("The double rounded to 2.dp is %.2lf\n", user_input);
    return 0;
}
sentinal_example.c 
#include <stdio.h> 

int main(void) {
    int odd_entered = 0;
    int user_input;
    while (odd_entered == 0) {
        printf("Enter a number from 1 to 10: ");
        scanf("%d", &user_input);
        if (user_input < 1 || user_input > 10) {
            printf("Make sure your number is between 1 and 10\n");
        } 
        else if (user_input % 2 == 1) {
            printf("Odd number detected\n");
            odd_entered = 1;
        }
        else {
            printf("Try again, new number time!\n");
        }
    }
    return 0;
}
sentinel_example.c 
#include <stdio.h>

int main(void) {
    int user_input = 12;
    while (!(user_input % 2 == 1)) {
        printf("Enter a number: ");
        scanf("%d", &user_input);
    }
    printf("Congratulations, you escaped!\n");
    return 0;
}
sentinel_loop.c 
#include <stdio.h>

int main(void) {
    int exit_condition = 0;
    int coconuts_harvested = 0;
    int total_coconuts = 0;
    while (exit_condition == 0) {
        printf("How many coconuts will you collect? ");
        scanf("%d", &coconuts_harvested);
        total_coconuts = total_coconuts + coconuts_harvested;
        if (total_coconuts > 40) {
            printf("We have enough food to survive! Yay!!\n");
            exit_condition = 1;
        }
        else {
            printf("Let's keep harvesting!\n");
        }
    }
    return 0;
}
starting_structs.c 
#include <stdio.h>

struct pokemon_stats {
    int hp;
    int attack;
    int defense;
    int sp_attack;
    int sp_defense;
    int speed;
};

struct person {
    char first_initial;
    char last_innitial;
    int height;
};

int main(void) {
    struct pokemon_stats glalie;
    struct person my_brother;
    glalie.hp = 80;
    glalie.attack = 80;
    glalie.defense = 80;
    glalie.sp_attack = 80;
    glalie.sp_defense = 80;
    glalie.speed = 80;
    my_brother.first_initial = 'A';
    my_brother.last_innitial = 'H';
    my_brother.height = 195;
    if (glalie.hp > 90) {
        printf("That's a good HP stat\n");
    } else {
        printf("This Pokemon seems pretty mid\n");
    }
    if (my_brother.height > 180) {
        printf("That's pretty tall!\n");
    }
    return 0;
}
structs.c 
#include <stdio.h>

struct coordinate {
    int x_coord;
    int y_coord;
};


int main(void) {
    struct coordinate one_piece;
    one_piece.x_coord = 15;
    one_piece.y_coord = 100;
    one_piece.x_coord = one_piece.x_coord * 10;
    one_piece.y_coord = one_piece.x_coord + 100;
    printf("The One Piece is located at X = %d, and Y = %d!\n", one_piece.x_coord, one_piece.y_coord);
    return 0;
}
survivor_example_if.c 
#include <stdio.h>

#define COCONUTS_LEFT 151

int main(void) {
    int guess;
    printf("How many coconuts do you think there are? ");
    scanf("%d", &guess);
    if (guess == COCONUTS_LEFT) {
        printf("Congratulations! You win immunity!\n");
    }
    else if ((guess >= COCONUTS_LEFT - 5 && guess < COCONUTS_LEFT) || (guess <= COCONUTS_LEFT + 5 && guess > COCONUTS_LEFT)) {
        printf("So close, yet so far!\n");
    }
    else if (guess < COCONUTS_LEFT) {
        printf("Not even close, way more than that.\n");
    }
    else if (guess > COCONUTS_LEFT) {
        printf("Not even close, way less than that.\n");
    }
    return 0;
}
survivor_example_while.c 
#include <stdio.h>

#define COCONUTS_LEFT 151

int main(void) {
    int guess;
    int total_guess = 0;
    while (total_guess < 5) {
        printf("How many coconuts do you think there are? ");
        scanf("%d", &guess);
        if (guess == COCONUTS_LEFT) {
            printf("Congratulations! You win immunity!\n");
        }
        else if ((guess >= COCONUTS_LEFT - 5 && guess < COCONUTS_LEFT) || (guess <= COCONUTS_LEFT + 5 && guess > COCONUTS_LEFT)) {
            printf("So close, yet so far!\n");
        }
        else if (guess < COCONUTS_LEFT) {
            printf("Not even close, way more than that.\n");
        }
        else if (guess > COCONUTS_LEFT) {
            printf("Not even close, way less than that.\n");
        }
        total_guess++;
    }
    return 0;
}
survivor_example_while_conditional.c 
#include <stdio.h>

#define COCONUTS_LEFT 151

int main(void) {
    int guess;
    int not_close_guesses = 0;
    while (not_close_guesses < 10) {
        printf("How many coconuts do you think there are? ");
        scanf("%d", &guess);
        if (guess == COCONUTS_LEFT) {
            printf("Congratulations! You win immunity!\n");
        }
        else if ((guess >= COCONUTS_LEFT - 5 && guess < COCONUTS_LEFT) || (guess <= COCONUTS_LEFT + 5 && guess > COCONUTS_LEFT)) {
            printf("So close, yet so far!\n");
        }
        else if (guess < COCONUTS_LEFT) {
            printf("Not even close, way more than that.\n");
            not_close_guesses++;
        }
        else if (guess > COCONUTS_LEFT) {
            printf("Not even close, way less than that.\n");
            not_close_guesses++;
        }
    }
    return 0;
}
survivor_example_while_sentinal.c 
#include <stdio.h>

#define COCONUTS_LEFT 151

int main(void) {
    int guess;
    int is_correct = 0;
    while (is_correct == 0) {
        printf("How many coconuts do you think there are? ");
        scanf("%d", &guess);
        if (guess == COCONUTS_LEFT) {
            printf("Congratulations! You win immunity!\n");
            is_correct = 1;
        }
        else if ((guess >= COCONUTS_LEFT - 5 && guess < COCONUTS_LEFT) || (guess <= COCONUTS_LEFT + 5 && guess > COCONUTS_LEFT)) {
            printf("So close, yet so far!\n");
        }
        else if (guess < COCONUTS_LEFT) {
            printf("Not even close, way more than that.\n");
        }
        else if (guess > COCONUTS_LEFT) {
            printf("Not even close, way less than that.\n");
        }
    }
    return 0;
}