제출 #875537

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
875537		reginox	Nizin (COCI16_nizin)	C++17	100 / 100	50 ms	10216 KiB

nizin

#include <bits/stdc++.h>
#define ll long long
#define faster ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define sp << " "
#define task ""
using namespace std;
const ll maxn = 1e6+1;
ll n, a[maxn], l, r, cnt;
int main(){
	if(fopen(task".inp","r")){
		freopen(task".inp","r",stdin);
		freopen(task".out","w",stdout);
	}
	faster
	cin >> n;
	for(ll i = 1; i <= n; i++) cin >> a[i];
	l=1, r=n;
	while(l<=r){
		while(l<=r && a[l]<a[r]){
			a[l+1]+=a[l];
			l++;
			cnt++;
		}
		if(a[l]==a[r]) l++,r--;
		while(l<=r && a[l]>a[r]){
			a[r-1]+=a[r];
			r--;
			cnt++;
		}
		if(a[l]==a[r]) l++,r--;
	}
	cout << cnt;
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

nizin.cpp: In function 'int main()':
nizin.cpp:11:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |   freopen(task".inp","r",stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
nizin.cpp:12:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |   freopen(task".out","w",stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10