답안 #232407

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
232407	2020-05-16T23:56:39 Z	limabeans	송금 (JOI19_remittance)	C++17	0 / 100	578 ms	9976 KB

remittance

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

template<typename T>
void out(T x) { cout << x << endl; exit(0); }
#define watch(x) cout << (#x) << " is " << (x) << endl




typedef long long ll;
const ll mod = 1e9+7;
const int maxn = 10;






vector<int> b;
map<vector<int>,bool> cache;

bool solve(vector<int> a) {

    int n = a.size();
    if (a == b) return true;

    if (cache.count(a)) return cache[a];
    
    for (int i=0; i<n; i++) {
	if (a[i]<=b[i]) continue;

	
	for (int x=0; x<=8; x+=2) {
	    for (int y=0; y<=8; y+=2) {
		if (x>0||y>0) {
		    if (a[i]>=x+y) {
			vector<int> _a = a;
			_a[i]-=x;
			_a[(i+1)%n]+=x/2;
			_a[i]-=y;
			_a[(i-1+n)%n]+=y/2;
			if (solve(_a)) {
			    return cache[a] = true;
			}
		    }
		}
	    }
	}
    }
    return cache[a] = false;
}

int n;
vector<int> _a;

int main() {
    ios_base::sync_with_stdio(false); cin.tie(0);  cout.tie(0);

    cin>>n;
    _a.resize(n);
    b.resize(n);
    
    for (int i=0; i<n; i++) {
	cin>>_a[i]>>b[i];
    }

    if (solve(_a)) out("Yes");
    out("No");

    return 0;
}

Subtask #1

0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	4 ms	384 KB	Output is correct
4	Correct	5 ms	384 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	5 ms	384 KB	Output is correct
7	Correct	6 ms	512 KB	Output is correct
8	Correct	4 ms	384 KB	Output is correct
9	Correct	4 ms	384 KB	Output is correct
10	Correct	4 ms	384 KB	Output is correct
11	Correct	5 ms	384 KB	Output is correct
12	Correct	4 ms	384 KB	Output is correct
13	Correct	5 ms	384 KB	Output is correct
14	Correct	4 ms	384 KB	Output is correct
15	Correct	4 ms	384 KB	Output is correct
16	Correct	5 ms	384 KB	Output is correct
17	Correct	5 ms	384 KB	Output is correct
18	Correct	5 ms	384 KB	Output is correct
19	Correct	5 ms	384 KB	Output is correct
20	Correct	5 ms	384 KB	Output is correct
21	Correct	578 ms	9976 KB	Output is correct
22	Correct	8 ms	512 KB	Output is correct
23	Correct	295 ms	6712 KB	Output is correct
24	Correct	18 ms	896 KB	Output is correct
25	Incorrect	16 ms	896 KB	Output isn't correct
26	Halted	0 ms	0 KB	-

Subtask #2

0 / 40.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	4 ms	384 KB	Output is correct
4	Correct	5 ms	384 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	5 ms	384 KB	Output is correct
7	Correct	6 ms	512 KB	Output is correct
8	Correct	4 ms	384 KB	Output is correct
9	Correct	4 ms	384 KB	Output is correct
10	Correct	4 ms	384 KB	Output is correct
11	Correct	5 ms	384 KB	Output is correct
12	Correct	4 ms	384 KB	Output is correct
13	Correct	5 ms	384 KB	Output is correct
14	Correct	4 ms	384 KB	Output is correct
15	Correct	4 ms	384 KB	Output is correct
16	Correct	5 ms	384 KB	Output is correct
17	Correct	5 ms	384 KB	Output is correct
18	Correct	5 ms	384 KB	Output is correct
19	Correct	5 ms	384 KB	Output is correct
20	Correct	5 ms	384 KB	Output is correct
21	Correct	578 ms	9976 KB	Output is correct
22	Correct	8 ms	512 KB	Output is correct
23	Correct	295 ms	6712 KB	Output is correct
24	Correct	18 ms	896 KB	Output is correct
25	Incorrect	16 ms	896 KB	Output isn't correct
26	Halted	0 ms	0 KB	-

Subtask #3

0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	4 ms	384 KB	Output is correct
4	Correct	5 ms	384 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	5 ms	384 KB	Output is correct
7	Correct	6 ms	512 KB	Output is correct
8	Correct	4 ms	384 KB	Output is correct
9	Correct	4 ms	384 KB	Output is correct
10	Correct	4 ms	384 KB	Output is correct
11	Correct	5 ms	384 KB	Output is correct
12	Correct	4 ms	384 KB	Output is correct
13	Correct	5 ms	384 KB	Output is correct
14	Correct	4 ms	384 KB	Output is correct
15	Correct	4 ms	384 KB	Output is correct
16	Correct	5 ms	384 KB	Output is correct
17	Correct	5 ms	384 KB	Output is correct
18	Correct	5 ms	384 KB	Output is correct
19	Correct	5 ms	384 KB	Output is correct
20	Correct	5 ms	384 KB	Output is correct
21	Correct	578 ms	9976 KB	Output is correct
22	Correct	8 ms	512 KB	Output is correct
23	Correct	295 ms	6712 KB	Output is correct
24	Correct	18 ms	896 KB	Output is correct
25	Incorrect	16 ms	896 KB	Output isn't correct
26	Halted	0 ms	0 KB	-