#include <stdio.h>
#define ROWS 2
#define COLS 3


void print_grid(int grid[ROWS][COLS]);
void scan_grid(int grid[ROWS][COLS]);
int sum_grid(int grid[ROWS][COLS]);
void print_row_sums(int grid[ROWS][COLS]);
void print_col_sums(int grid[ROWS][COLS]);
void copy_grid(int grid[ROWS][COLS], 
               int grid_copy[ROWS][COLS]);

int main(void) {
    int grid[ROWS][COLS] =  {{3, 5, 1},
                            {2, 4, 9}};

    int grid2[ROWS][COLS];
    copy_grid(grid, grid2);
    
    //scan_grid(grid);
    print_grid(grid);
    print_grid(grid2);
   
    return 0;
}


void copy_grid(int grid[ROWS][COLS], int grid_copy[ROWS][COLS]) {
    for(int row = 0; row < ROWS; row++) {
        for(int col = 0; col < COLS; col++){
            grid_copy[row][col] = grid[row][col];
        }
    }
}

void print_grid(int grid[ROWS][COLS]) {
    printf("Grid\n");
    
    for (int row = 0; row < ROWS; row++) {    
        for (int col = 0; col < COLS; col++ ) {
            printf("%d ", grid[row][col]);         
        }
        printf("\n");
    } 
}

void scan_grid(int grid[ROWS][COLS]) {
    printf("Please enter data\n");
    for (int row = 0; row < ROWS; row++) {    
        for (int col = 0; col < COLS; col++ ) {
            scanf("%d", &grid[row][col]);         
        }
    } 
}

int sum_grid(int grid[ROWS][COLS]) {
    int sum = 0;
    for (int row = 0; row < ROWS; row++) {    
        for (int col = 0; col < COLS; col++ ) {
            sum = sum + grid[row][col];         
        }
    } 
    return sum;
}

void print_row_sums(int grid[ROWS][COLS]) {
    int sum = 0;
    for (int row = 0; row < ROWS; row++) {  
        sum = 0;  
        for (int col = 0; col < COLS; col++ ) {
            sum = sum + grid[row][col];         
        }
        printf("Sum of row %d is %d\n", row, sum);
    } 
}

void print_col_sums(int grid[ROWS][COLS]) {
    int sum = 0;
    for (int col = 0; col < COLS; col++) {  
        sum = 0;  
        for (int row = 0; row < ROWS; row++ ) {
            sum = sum + grid[row][col];         
        }
        printf("Sum of col %d is %d\n", col, sum);
    } 
}
 
/*
  printf("The sum was %d\n", sum_grid(grid));
    print_row_sums(grid);
    print_col_sums(grid);
    */
/*
    int row;
    int col;
    printf("Enter a row and col: ");
    scanf("%d %d", &row, &col);
    printf("Element was %d\n", grid[row][col]);
*/