제출 #494219

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
494219		nickmet2004	Bigger segments (IZhO19_segments)	C++11	0 / 100	5 ms	204 KiB

segments

#include<bits/stdc++.h>
#define int long long
using namespace std;
const int N = 5e5 + 5;
int n , a[N];
 main (){
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin >> n;
    for(int i = 1; i<= n;++i)cin >> a[i];
    int x = a[1] , i = 2;
    set<int> s; int ans = 1;
    while(i <= n){
        int y =0;
        while(x > y + a[i])y+=a[i] , ++i ,s.insert(y);
        y+=a[i];
        //cout << y << " y" << endl;
        ans++;
        int z = (y - x)/2;
        int q = *s.lower_bound(z);
        s.clear();
        y -= z;
        x = y;
        ++i;
    }cout << ans;
}

컴파일 시 표준 에러 (stderr) 메시지

segments.cpp:6:2: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    6 |  main (){
      |  ^~~~
segments.cpp: In function 'int main()':
segments.cpp:19:13: warning: unused variable 'q' [-Wunused-variable]
   19 |         int q = *s.lower_bound(z);
      |             ^

• Subtask 1: 0 / 13
• Subtask 2: 0 / 14
• Subtask 3: 0 / 10
• Subtask 4: 0 / 36
• Subtask 5: 0 / 27