Submission #1168360

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Source Code Expand

#include <stdio.h>

int main() {
    long long x;
    long long s, e, m;
    
    scanf("%lld", &x);
    s = 1;
    e = 100000;
    //printf("[%d]\n", e);
    while(s < e) {
        m = (s + e) / 2;
        if(m * (m + 1) / 2 < x) s = m + 1;
        else e = m;
    }
    printf("%lld\n", s);
    return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:7:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld", &x);
     ^

Judge Result