Question

I’m trying to replace the first line with spaces, what is it that is wrong here?

#include <stdio.h>
int main(void){
    char text[5][10]={
        {'a','a','a','a','a','a','a','a','a','\0'},
        {'a','a','a','a','a','a','a','a','a','\0'},
        {'a','a','a','a','a','a','a','a','a','\0'},
        {'a','a','a','a','a','a','a','a','a','\0'},
        {'a','a','a','a','a','a','a','a','a','\0'},
    };


    for (int i=0;i<10;i++){
        text[i]=' ';
    }

    for (int i=0;i<5;i++){
        printf("%s\n",text[i]);
    }

    return 0;
}

Answer 1

I’d go one further – you’re overwriting the null at the end of the first ‘line’. Set your loop to iterate over 0..9:

for (int i=0;i<9;i++){
        text[0][i]=' ';
}