Submission #1166456

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
#define FOR(i,s,e) for (int i=s;i<e;i++)
#define FOE(i,s,e) for (int i=s;i<=e;i++)
#define FOD(i,s,e) for (int i=s;i>=e;i--)
#define SET(a,e) memset(a,e,sizeof(a))
#define LL long long
#define LD long double
#define pb push_back
#define x first
#define y second
#define PII pair<int,int>
#define PLI pair<LL,int>
#define PIL pair<int,LL>
#define PLL pair<LL,LL>
#define PDD pair<LD,LD>
#define eps 1e-9
#define HH1 402653189
#define HH2 1610612741

LL x, sum;

int main () {
	
	scanf("%lld", &x);
	
	FOE(i, 1, x) {
		sum += i;
		if (sum >= x) {
			printf("%d\n", i);
			return 0;
		}
	}
	
	return 0;
	
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:25:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld", &x);
                   ^

Judge Result