Submission #1166468

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;

#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define FORD(i,b,a) for (int i = (int)(b) - 1; i >= a; --i)
#define REP(i,N) FOR(i,0,N)
#define st first
#define nd second
#define pb push_back

typedef pair<int, int> PII;
typedef long long LL;

int main() {
  int X;
  scanf("%d", &X);
  int r = 0;
  while (r * (r+1) / 2 < X) ++r;
  printf("%d\n", r);
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:16:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &X);
                  ^

Judge Result