結果
| 問題 | No.309 シャイな人たち (1) |
| コンテスト | |
| ユーザー |
mayoko_
|
| 提出日時 | 2015-12-04 20:23:07 |
| 言語 | C++11(廃止可能性あり) (gcc 13.3.0 + boost 1.89.0) |
| 結果 |
AC
|
| 実行時間 | 2,117 ms / 4,000 ms |
| コード長 | 2,779 bytes |
| 記録 | |
| コンパイル時間 | 869 ms |
| コンパイル使用メモリ | 89,324 KB |
| 実行使用メモリ | 20,480 KB |
| 最終ジャッジ日時 | 2024-09-14 13:12:01 |
| 合計ジャッジ時間 | 19,007 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 13 |
コンパイルメッセージ
main.cpp: In function ‘int main()’:
main.cpp:43:10: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
43 | scanf("%d %d", &R, &C);
| ~~~~~^~~~~~~~~~~~~~~~~
main.cpp:44:66: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
44 | for (int i = 0; i < R; i++) for (int j = 0; j < C; j++) scanf("%d", &P[i][j]);
| ~~~~~^~~~~~~~~~~~~~~~
main.cpp:45:66: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
45 | for (int i = 0; i < R; i++) for (int j = 0; j < C; j++) scanf("%d", &S[i][j]);
| ~~~~~^~~~~~~~~~~~~~~~
ソースコード
#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
//#include<cctype>
#include<climits>
#include<iostream>
#include<string>
#include<vector>
#include<map>
//#include<list>
#include<queue>
#include<deque>
#include<algorithm>
//#include<numeric>
#include<utility>
#include<complex>
//#include<memory>
#include<functional>
#include<cassert>
#include<set>
#include<stack>
const int dx[] = {1, 0, -1, 0};
const int dy[] = {0, 1, 0, -1};
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef pair<int, int> pii;
typedef double Real;
const int MAX = 11;
int P[MAX][MAX], S[MAX][MAX];
int memo[1<<(2*MAX)], rest[MAX];
Real pmemo[MAX][1<<MAX];
Real dp[MAX+1][1<<MAX];
int main() {
int R, C;
scanf("%d %d", &R, &C);
for (int i = 0; i < R; i++) for (int j = 0; j < C; j++) scanf("%d", &P[i][j]);
for (int i = 0; i < R; i++) for (int j = 0; j < C; j++) scanf("%d", &S[i][j]);
for (int s = 0; s < 1<<(2*C); s++) {
int tmp = s;
queue<int> que;
for (int i = 0; i < C; i++) {
rest[i] = tmp%4;
tmp /= 4;
if (rest[i] == 0) que.push(i);
}
while (!que.empty()) {
int now = que.front(); que.pop();
if (now-1 >= 0) {
rest[now-1]--;
if (rest[now-1] == 0) que.push(now-1);
}
if (now+1 < C) {
rest[now+1]--;
if (rest[now+1] == 0) que.push(now+1);
}
}
int& result = memo[s];
for (int i = 0; i < C; i++) result |= (rest[i]<=0)<<i;
}
for (int r = 0; r < R; r++) for (int s = 0; s < (1<<C); s++) {
double& prob = pmemo[r][s];
prob = 1;
for (int c = 0; c < C; c++) {
if ((s>>c)&1) prob *= P[r][c]/100.;
else prob *= (100-P[r][c])/100.;
}
}
dp[0][0] = 1;
for (int r = 0; r < R; r++) {
for (int s0 = 0; s0 < (1<<C); s0++) {
if (r == 0 && s0 > 0) continue;
for (int s1 = 0; s1 < (1<<C); s1++) {
double prob = dp[r][s0]*pmemo[r][s1];
if (prob == 0) continue;
int mask = 0;
for (int c = C-1; c >= 0; c--) {
int score = 3;
if ((s1>>c)&1) {
score = min(3, S[r][c]-((s0>>c)&1));
score = max(0, score);
}
mask = mask*4+score;
}
dp[r+1][memo[mask]] += prob;
}
}
}
Real ans = 0;
for (int i = 1; i <= R; i++) for (int s = 1; s < (1<<C); s++) {
ans += dp[i][s] * __builtin_popcount(s);
}
printf("%.10lf\n", ans);
return 0;
}
mayoko_