codeforces 231A

水题一道

只要每行大于等于 2

ans就 ++

#include <stdio.h>
         
int main ( ) {
    int t, x, y, z, ans, tmp;
    scanf ( "%d", &t );
    ans = 0;                                                          
    while ( t-- ) {
        tmp = 0;
        scanf ( "%d%d%d", &x, &y, &z );
        if ( x == 1 ) tmp++;
        if ( y == 1 ) tmp++;
        if ( z == 1 ) tmp++;
        if ( tmp >= 2 )
            ans++;
    }    
    printf ( "%d\n", ans );
}