제출 #950788

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
950788		vjudge1	송금 (JOI19_remittance)	C++17	0 / 100	1 ms	460 KiB

remittance

//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
//#pragma GCC optimize("Ofast,unroll-loops,fast-math,O3")

#include<bits/stdc++.h>	

using namespace std;

#define all(a) a.begin(), a.end()                                                   
#define rall(a) a.rbegin(), a.rend()                 
#define sz(a) (int)a.size()
#define s second
#define f first
 
using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
     
vector<pii> rid = {{0, 1}, {0, -1}, {1, 0}, {-1, 0}};
vector<pii> dir = {{-1, -1}, {-1, 1}, {1, -1}, {1, 1}};
 
const int N = 2e5 + 1, mod = 1e9 + 7;

const ll inf = 1e9;
 
double eps = 1e-15;
                                                
bool flg = 0;

void slv() {
	int n;
	cin >> n;
	int a[n + 1], b[n + 1];
	for (int i = 1; i <= n; i++) {
		cin >> a[i] >> b[i];
	}
	for (int i = 1; i <= n; i++) {
		int x = 0, ok = 1;
		for (int j = i; j <= n; j++) {
			int v = a[j] + x - b[j];
			if (v < 0 || (v & 1)) {
				ok = 0;
				break;
		    }
		   	x = v / 2; 
		}
		for (int j = 1; j < i; j++) {
			int v = a[j] + x - b[j];
			if (v < 0 || (v & 1)) {
				ok = 0;
				break;
		    }
		   	x = v / 2;
		}
		if (!x && ok) {
			cout << "Yes\n";
			return;
		}
	}
	cout << "No\n";
}                                                                           
 
main() {
	//freopen("rsq.in", "r", stdin);                                                                                     
	//freopen("rsq.out", "w", stdout);                                                                                     
	ios_base::sync_with_stdio(0);	                                                                                       
	cin.tie(0);
	int tp = 1;
	if (flg) cin >> tp;
	while (tp--) {  	
		slv();
	}
}
//wenomechainsama                                              

컴파일 시 표준 에러 (stderr) 메시지

remittance.cpp:64:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   64 | main() {
      | ^~~~

• Subtask 1: 0 / 15
• Subtask 2: 0 / 40
• Subtask 3: 0 / 45