Submission #1194992

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
#define mem(a,b) memset(a,b,sizeof(a))
#define lmt 600001
int _I(){int x; scanf("%d",&x); return x;}
bool prime[lmt+5];
vector< long > pp;
void seive(){
    //int i,j;
    pp.push_back(2);
    for(long i = 4; i <= lmt; i+=2) prime[ i ] = 1;
    for(long i = 3; i <= lmt; i+=2){
        if(!prime[ i ]){
            pp.push_back(i);
            for(long j = i*3; j <= lmt; j+=i<<1) prime [ j ] = 1;
        }
    }
    prime[0]=prime[1]=1;
}
long long ar[300005];
void Lipu_mira()
{
    int n = _I();
    ar[300001];
    for( int i = 0; i < 3*n ; i++) scanf("%lld", &ar[ i ]);
    sort(ar,ar+(3*n),greater< long long>());
    long long sum = 0;
    for(int i = n; i< 2*n; i++){
        sum += ar[i];
    }
    cout<<sum<<"\n";
}
int main()
{
    //seive();
    //while(true)
    Lipu_mira();
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int _I()’:
./Main.cpp:5:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
 int _I(){int x; scanf("%d",&x); return x;}
                               ^
./Main.cpp: In function ‘void Lipu_mira()’:
./Main.cpp:25:59: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     for( int i = 0; i < 3*n ; i++) scanf("%lld", &ar[ i ]);
                                                           ^

Judge Result