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 | cxm1024 | 0 | 2245ms | 15700kb | C++23 | 2.5kb | 2025-04-18 17:20:59 | 2025-04-18 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...