Fixing a broken loop by changing exactly one character

Answer 1

Solution 1

#include <stdio.h>
int main()
{
    int i;
    int n = 20;
    for( i = 0; i < n; n-- ) // Change i-- to n--
        printf("-");
    return 0;
}

Solution 2

#include <stdio.h>
int main()
{
    int i;
    int n = 20;
    for( i = 0; -i < n; i-- ) // Compare to -i
        printf("-");
    return 0;
}

Haven't figured a third.

Answer 2

Change i-- to n-- is another.

Okay - Gab made the fix, so I removed the other solution. He wins!