Thread: 2 dimensional arrays

Good day everyone. I am a newbie in C, just started out like 4 days ago. I am currently doing 2 dimensional arrays and came across this example. But when i ran it in the compiler, it says the for loop is only allowed in C99 mode. and im notsure if there are other errors. Help would be appreciated .Tq.

Code:

#include <stdio.h>
int main()
{
    int temperature[CITY][WEEK];
    for(int i =0; i < CITY;++i){
        for(int j =0; j < WEEK;++j){
            printf("City %d, Day %d: ", i+1, j+1);
            scanf("%d",&temperature[i][j]);
        }
    }

    printf("\nDisplaying values: \n\n");
    for(int i =0; i < CITY;++i){
        for(int j =0; j < WEEK;++j)
        {
            printf("City %d, Day %d = %d\n", i+1, j+1, temperature[i][j]);
        }
    }
    return0;
}

I am doing the C programming momentarily in tutorialspoint online compiler

project -> compile options

Add the -std=c99 flag as shown by Salem.