Submission #174392

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Source Code Expand

#include <algorithm>
#include <cstdio>
#include <functional>
#include <iostream>
#include <set>
#include <vector>
using namespace std;
#define For(i,x) for (int i=0; i<(int)(x); i++)

int calc(const set<int>& st) {
    vector<int> v(st.begin(), st.end());
    
    nth_element(v.begin(), v.begin()+1, v.end(), greater<int>());
    return v[1];
}

int main() {
    int n;
    scanf("%d", &n);

    set<int> st;
    For(i, n) {
        int x;
        scanf("%d", &x);
        st.insert(x);
    }

    printf("%d\n", calc(st));
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:19:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
./Main.cpp:24:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]

Judge Result