Submission #1166906

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Source Code Expand

#include<stdio.h>
int main(){
  long long n,i;
  scanf("%lld",&n);
  for(i=0;i<n;i++){
    if(i*(i+1)/2>=n)break;
  }
  printf("%lld\n",i);
  return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:4:3: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld",&n);
   ^

Judge Result