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WyOJ

ID题目提交者结果用时内存语言文件大小提交时间测评时间
#301#6. 「WyOJ Round 1」持 · 山海为肩cxm102402245ms15700kbC++232.5kb2025-04-18 17:20:592025-04-18 18:05:13

answer

#include <bits/stdc++.h>
#define deb cout << "in " << __LINE__ << "\t: "
using namespace std;
const string str = "rps";
string out[3] = {"rock", "paper", "scissors"};
#define int long long
struct node {
	int p[3];
	node() {}
	node(int x, int y, int z) {p[0] = x, p[1] = y, p[2] = z;}
};
node operator * (node a, node b) {
	node res{0, 0, 0};
	for (int i = 0; i < 3; i++)
		for (int j = 0; j < 3; j++)
			res.p[(i + j) % 3] += a.p[i] * b.p[j];
	res.p[1] -= res.p[2], res.p[0] -= res.p[2], res.p[2] = 0;
	return res;
}
node operator + (node a, node b) {
	for (int i = 0; i < 3; i++)
		a.p[i] += b.p[i];
	a.p[1] -= a.p[2], a.p[0] -= a.p[2], a.p[2] = 0;
	return a;
}
int n, m, pw[13];
node a[550000], b[550000], w1, w2;
void fwt(node *f) {
	for (int i = 0; i < m; i++) {
		for (int j = 0; j < pw[m]; j++) {
			if (j / pw[i] % 3) continue;
			node x = a[j], y = a[j + pw[i]], z = a[j + pw[i] * 2];
			a[j] = x + y + z;
			a[j + pw[i]] = x + y * w1 + z * w2;
			a[j + pw[i] * 2] = x + y * w2 + z * w1;
		}
	}
}
void ifwt(node *f) {
	for (int i = 0; i < m; i++) {
		for (int j = 0; j < pw[m]; j++) {
			if (j / pw[i] % 3) continue;
			node x = a[j], y = a[j + pw[i]], z = a[j + pw[i] * 2];
			a[j] = x + y + z;
			a[j + pw[i]] = x + y * w2 + z * w1;
			a[j + pw[i] * 2] = x + y * w1 + z * w2;
		}
		for (int j = 0; j < pw[m]; j++)
			for (int k = 0; k < 3; k++)
				a[j].p[k] /= 3;
	}
}
signed main() {
	ios::sync_with_stdio(false);
	cin.tie(0), cout.tie(0);
	cin >> n >> m, w1 = {0, 1, 0}, w2 = {0, 0, 1};
	w2.p[1] -= w2.p[2], w2.p[0] -= w2.p[2], w2.p[2] = 0;
	pw[0] = 1;
	for (int i = 1; i <= 12; i++)
		pw[i] = pw[i - 1] * 3;
	for (int i = 1; i <= n; i++) {
		double p;
		cin >> p;
		int val = p * 1000000 + 0.5, ind = 0;
		for (int j = 1; j <= m; j++) {
			string s;
			cin >> s;
			ind += pw[m - j] * str.find(s[0]);
		}
		a[ind].p[0] += val;
	}
	for (int i = 0; i < pw[m]; i++) {
		int sum = 0;
		for (int j = 0; j < m; j++) {
			if (i / pw[j] % 3 == 1) sum++;
			else if (i / pw[j] % 3 == 2) sum--;
		}
		if (sum >= 0) b[i].p[0] = 1;
	}
	fwt(a), fwt(b);
	for (int i = 0; i < pw[m]; i++)
		a[i] = a[i] * b[i];
	ifwt(a);
	int mx = 0;
	for (int i = 0; i < pw[m]; i++) {
		a[i].p[0] -= a[i].p[1];
		mx = max(mx, a[i].p[0]);
	}
	cout << fixed << setprecision(6) << (mx+ 0.5) / 1000000.0 << "\n";
	for (int i = 0; i < pw[m]; i++)
		if (a[i].p[0] == mx) {
			for (int j = m - 1; j >= 0; j--)
				cout << out[i / pw[j] % 3] << " ";
			cout << "\n";
			break;
		}
	return 0;
}

详细

小提示:点击横条可展开更详细的信息

Test #1:

score: 0
Wrong Answer
time: 7ms
memory: 5532kb

input:

841 5
0.002262 paper rock rock scissors scissors
0.000665 rock paper paper scissors paper
0.001132 s...

output:

0.637837
rock rock rock rock rock 

result:

wrong answer 1st words differ - expected: '0.689135', found: '0.637837'

Test #2:

score: 0
Wrong Answer
time: 2ms
memory: 5688kb

input:

320 1
0.001734 rock
0.000432 rock
0.003306 scissors
0.000322 paper
0.000380 rock
0.000817 scissors
0...

output:

0.728100
rock 

result:

wrong answer 1st words differ - expected: '0.728099', found: '0.728100'

Test #3:

score: 0
Wrong Answer
time: 2ms
memory: 5564kb

input:

19 2
0.086520 scissors rock
0.028985 rock rock
0.056406 rock scissors
0.010732 scissors rock
0.04471...

output:

0.803032
rock rock 

result:

wrong answer 1st words differ - expected: '0.836348', found: '0.803032'

Test #4:

score: 0
Time Limit Exceeded

input:

100000 12
0.000008 rock rock rock scissors paper scissors paper paper paper scissors paper scissors
...

output:


result:


Test #5:

score: 0
Wrong Answer
time: 959ms
memory: 15576kb

input:

82918 11
0.000009 paper rock rock scissors scissors paper rock paper rock rock paper
0.000000 scisso...

output:

0.571685
rock rock rock rock rock rock rock rock rock rock rock 

result:

wrong answer 1st words differ - expected: '0.582727', found: '0.571685'

Test #6:

score: 0
Wrong Answer
time: 362ms
memory: 9056kb

input:

63157 10
0.000004 rock scissors paper scissors paper scissors rock paper rock scissors
0.000007 rock...

output:

0.574367
rock rock rock rock rock rock rock rock rock rock 

result:

wrong answer 1st words differ - expected: '0.587712', found: '0.574367'

Test #7:

score: 0
Time Limit Exceeded

input:

100000 12
0.000003 rock rock rock paper paper rock paper paper paper rock rock scissors
0.000001 pap...

output:


result:


Test #8:

score: 0
Wrong Answer
time: 913ms
memory: 15700kb

input:

72055 11
0.000006 rock scissors scissors rock scissors scissors scissors scissors rock scissors scis...

output:

0.580110
rock rock rock rock rock rock rock rock rock rock rock 

result:

wrong answer 1st words differ - expected: '0.584229', found: '0.580110'

Test #9:

score: 0
Time Limit Exceeded

input:

49463 12
0.000024 rock paper scissors paper rock scissors rock paper paper paper paper paper
0.00000...

output:


result:


Test #10:

score: 0
Time Limit Exceeded

input:

100000 12
0.000007 rock paper scissors paper paper scissors rock rock scissors rock scissors paper
0...

output:


result: