Submission #528009

#	Time	Username	Problem	Language	Result	Execution time	Memory
528009		amukkalir	Let's Win the Election (JOI22_ho_t3)	C++17	0 / 100	1 ms	204 KiB

Main

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

#define prn printf
#define scn scanf

signed main () {
    int n,k; 
    scn("%d%d", &n, &k); 
    int a[n]; 
    for(int i=0; i<n; i++) {
        int x; 
        scn("%d%d", &a[i],&x); 
    }
    sort(a, a+n); 
    double ans = 0; 
    for(int i=0; i<k; i++){
        ans += (double) a[i]/(i+1); 
    }
    prn("%f", ans); 
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:10:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |     scn("%d%d", &n, &k);
      |        ^
Main.cpp:14:12: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |         scn("%d%d", &a[i],&x);
      |            ^

• Subtask 1: 0 / 5
• Subtask 2: 0 / 5
• Subtask 3: 0 / 11
• Subtask 4: 0 / 12
• Subtask 5: 0 / 33
• Subtask 6: 0 / 11
• Subtask 7: 0 / 23