Submission #1166790

#	Time	Username	Problem	Language	Result	Execution time	Memory
1166790		SmuggingSpun	Fireworks (APIO16_fireworks)	C++20	7 / 100	0 ms	328 KiB

fireworks

#include<bits/stdc++.h>
#define taskname "B"
using namespace std;
typedef long long ll;
int n, m;
namespace sub1{
    void solve(){
        vector<int>a(m);
        for(int& x : a){
            cin >> x >> x;
        }
        sort(a.begin(), a.end());
        int median = a[m >> 1];
        ll ans = 0;
        for(int& x : a){
            ans += abs(x - median);
        }
        cout << ans;
    }
}
int main(){
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	if(fopen(taskname".inp", "r")){
		freopen(taskname".inp", "r", stdin);
	}
    cin >> n >> m;
    if(n == 1){
        sub1::solve();
    }
}

Compilation message (stderr)

fireworks.cpp: In function 'int main()':
fireworks.cpp:24:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |                 freopen(taskname".inp", "r", stdin);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 0 / 19
• Subtask 3: 0 / 29
• Subtask 4: 0 / 45