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#544129#9162. COVID tests251Sec22.95 1473ms15884kbC++141.3kb2024-09-02 10:01:262024-09-02 10:01:26

Judging History

你现在查看的是最新测评结果

  • [2024-09-02 10:01:26]
  • 评测
  • 测评结果:22.95
  • 用时:1473ms
  • 内存:15884kb
  • [2024-09-02 10:01:26]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
int N, T;
double P, p[1005];
double f[1005][1005];
int g[1005][1005];
bool Query(int l, int r) {
	printf("Q ");
	for (auto i = 0; i < N; i++) putchar('0' ^ (i >= l && i <= r));
	putchar('\n');
	fflush(stdout);
	char c; scanf(" %c", &c);
	return (c == 'P');
}
void Solve() {
	int i = 0, j = -1;
	vector<bool> ans(N);
	while (i < N) {
		if (j != i) {
			int k = g[N - i][j - i + 1]; bool x = Query(i, i + k - 1);
			if (x) j = i + k - 1;
			else i += k, j = i - 1;
		}
		else if (j == i) ans[j] = 1, i++;
	}
	printf("A ");
	for (int i = 0; i < N; i++) putchar('0' ^ ans[i]);
	putchar('\n');
	fflush(stdout);
	scanf(" %*c");
}
int main() {
	scanf("%d%lf%d", &N, &P, &T);
	p[0] = 1;
	for (int i = 1; i <= N; i++) p[i] = p[i - 1] * (1 - P);
	for (int i = 1; i <= N; i++) {
		f[i][1] = f[i - 1][0];
		for (int j = 2; j <= i; j++) {
			f[i][j] = 1e18;
			for (int k = 1; k <= j; k++) {
				double t = (1 - p[k]) / (1 - p[j]), w = t * f[i][k] + (1 - t) * f[i - k][j - k] + 1;
				if (w < f[i][j]) f[i][j] = w, g[i][j] = k;
			}
		}
		f[i][0] = 1e18;
		for (int k = 1; k <= i; k++) {
			double w = p[k] * f[i - k][0] + (1 - p[k]) * f[i][k] + 1;
			if (w < f[i][0]) f[i][0] = w, g[i][0] = k;
		}
	}
	while (T--) Solve();
	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 10
Accepted

Test #1:

score: 10
Accepted
time: 266ms
memory: 15872kb

input:

1000 0.789673 1
P
N
P
P
P
P
P
P
N
P
P
N
P
N
P
P
P
P
P
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N
...

output:

Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 1.0 1.0 translate:success

Test #2:

score: 10
Accepted
time: 260ms
memory: 15444kb

input:

1000 0.686378 1
N
P
N
N
N
P
N
N
P
N
P
P
N
N
P
P
P
P
N
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N
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...

output:

Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 1.0 1.0 translate:success

Test #3:

score: 10
Accepted
time: 262ms
memory: 15244kb

input:

1000 0.873862 1
P
P
P
P
P
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...

output:

Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 1.0 1.0 translate:success

Test #4:

score: 10
Accepted
time: 266ms
memory: 15060kb

input:

1000 0.669578 1
P
P
N
P
P
P
P
P
N
P
N
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P
P
N
P
P
P
P
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N
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...

output:

Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 1.0 1.0 translate:success

Test #5:

score: 10
Accepted
time: 258ms
memory: 15884kb

input:

1000 0.907052 1
P
P
P
P
P
P
P
N
P
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N
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...

output:

Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 1.0 1.0 translate:success

Test #6:

score: 10
Accepted
time: 251ms
memory: 15220kb

input:

1000 0.844418 1
P
P
P
P
P
P
P
P
P
P
P
P
N
P
P
P
P
P
P
N
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...

output:

Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 1.0 1.0 translate:success

Test #7:

score: 10
Accepted
time: 260ms
memory: 15456kb

input:

1000 0.533576 1
P
P
P
N
N
N
N
P
P
N
N
P
N
P
N
P
P
N
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...

output:

Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 1.0 1.0 translate:success

Test #8:

score: 10
Accepted
time: 260ms
memory: 15376kb

input:

1000 0.415944 1
N
N
N
N
N
N
N
P
N
N
P
N
N
P
N
P
N
N
N
P
N
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...

output:

Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 1.0 1.0 translate:success

Test #9:

score: 10
Accepted
time: 268ms
memory: 15884kb

input:

1000 0.596017 1
P
N
P
P
N
N
P
N
N
P
P
P
N
P
N
N
P
P
P
N
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N
P
N
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...

output:

Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 1.0 1.0 translate:success

Test #10:

score: 10
Accepted
time: 260ms
memory: 15420kb

input:

1000 0.157686 1
N
N
N
P
P
N
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P
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N
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N
P
P
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...

output:

Q 1111000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 1.0 1.0 translate:success

Test #11:

score: 10
Accepted
time: 260ms
memory: 15260kb

input:

1000 0.380215 1
N
P
N
P
P
N
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N
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P
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P
N
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N
P
P
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...

output:

Q 1100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 1.0 1.0 translate:success

Test #12:

score: 10
Accepted
time: 270ms
memory: 15220kb

input:

1000 0.432565 1
P
N
P
N
N
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N
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P
P
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N
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P
N
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...

output:

Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 1.0 1.0 translate:success

Test #13:

score: 10
Accepted
time: 253ms
memory: 15524kb

input:

1000 0.509199 1
P
P
N
P
N
N
N
P
P
N
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N
N
P
N
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P
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...

output:

Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 1.0 1.0 translate:success

Test #14:

score: 10
Accepted
time: 259ms
memory: 14920kb

input:

1000 0.381646 1
N
P
N
P
P
N
N
P
P
P
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P
N
N
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N
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...

output:

Q 1100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 1.0 1.0 translate:success

Test #15:

score: 10
Accepted
time: 252ms
memory: 15196kb

input:

1000 0.42815 1
N
P
P
N
P
N
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P
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N
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N
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N
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P
P
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output:

Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 1.0 1.0 translate:success

Test #16:

score: 10
Accepted
time: 250ms
memory: 15160kb

input:

1000 1 1
P
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output:

Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 1.0 1.0 translate:success

Test #17:

score: 10
Accepted
time: 254ms
memory: 15684kb

input:

1000 0 1
N
C

output:

Q 1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

result:

points 1.0 1.0 translate:success

Subtask #2:

score: 12.95
Acceptable Answer

Test #18:

score: 16.76
Acceptable Answer
time: 311ms
memory: 15232kb

input:

1000 0.001 300
N
N
C
N
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output:

Q 1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

result:

points 0.18622222220 0.1862222222 Output is correct (P=0.001, F=15.1, Q=31.6) -> 16.76 points

Test #19:

score: 12.95
Acceptable Answer
time: 436ms
memory: 15480kb

input:

1000 0.005256 300
P
N
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...

output:

Q 1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 0.14388888890 0.1438888889 Output is correct (P=0.005256, F=51.1, Q=127.1) -> 12.95 points

Test #20:

score: 15.24
Acceptable Answer
time: 598ms
memory: 15308kb

input:

1000 0.011546 300
P
P
N
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...

output:

Q 1111111111111111111111111111111111111111111111111111111111110000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 0.16933333330 0.1693333333 Output is correct (P=0.011546, F=94.9, Q=211.3) -> 15.24 points

Test #21:

score: 17.84
Acceptable Answer
time: 757ms
memory: 14912kb

input:

1000 0.028545 300
P
P
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N
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...

output:

Q 1111111111111111111111110000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 0.19822222220 0.1982222222 Output is correct (P=0.028545, F=191.5, Q=385.1) -> 17.84 points

Test #22:

score: 17.78
Acceptable Answer
time: 942ms
memory: 14900kb

input:

1000 0.039856 300
P
N
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...

output:

Q 1111111111111111100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 0.19755555560 0.1975555556 Output is correct (P=0.039856, F=246.3, Q=496.4) -> 17.78 points

Test #23:

score: 22.08
Acceptable Answer
time: 1116ms
memory: 15188kb

input:

1000 0.068648 300
N
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N
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...

output:

Q 1111111111000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 0.24533333330 0.2453333333 Output is correct (P=0.068648, F=366.2, Q=647.9) -> 22.08 points

Test #24:

score: 28.52
Acceptable Answer
time: 1106ms
memory: 15192kb

input:

1000 0.104571 300
N
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...

output:

Q 1111110000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 0.31688888890 0.3168888889 Output is correct (P=0.104571, F=490.3, Q=754.5) -> 28.52 points

Test #25:

score: 28.83
Acceptable Answer
time: 1473ms
memory: 14936kb

input:

1000 0.158765 300
N
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N
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...

output:

Q 1111000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 0.32033333330 0.3203333333 Output is correct (P=0.158765, F=639.1, Q=978.1) -> 28.83 points

Test #26:

score: 40.94
Acceptable Answer
time: 1366ms
memory: 15632kb

input:

1000 0.2 300
N
P
N
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output:

Q 1110000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

result:

points 0.45488888890 0.4548888889 Output is correct (P=0.2, F=731.4, Q=950.5) -> 40.94 points