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QOJ
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 |
---|---|---|---|---|---|---|---|---|---|
#528525 | #9162. COVID tests | Dimash# | 10 | 819ms | 4064kb | C++23 | 2.0kb | 2024-08-23 15:49:28 | 2024-08-23 15:49:28 |
Judging History
answer
#include <cassert>
#include <cstdio>
#include <string>
#include <vector>
#include <bits/stdc++.h>
using namespace std;;
/// You may use:
// The number of students
int N;
// The probability any given student is positive
double P;
// This function performs a test on a subset of samples.
// Its argument is a vector of Booleans of length N,
// where the i-th element is true if the i-th sample should be added to the mix.
// It returns true if (and only if) at least one of the samples in the mix is positive.
bool test_students(std::vector<bool> mask) {
assert(mask.size() == (size_t)N);
std::string mask_str(N, ' ');
for (int i = 0; i < N; i++)
mask_str[i] = mask[i] ? '1' : '0';
printf("Q %s\n", mask_str.c_str());
fflush(stdout);
char answer;
scanf(" %c", &answer);
return answer == 'P';
}
/// You should implement:
// This function will be called once for each test instance.
// It should use test_students to determine which samples are positive.
// It must return a vector of Booleans of length N,
// where the i-th element is true if and only if the i-th sample is positive.
std::vector<bool> find_positive() {
vector<bool> answer(N),ask(N,0);
for(int i = 0;i < N;i++) {
ask[i] = 1;
if(test_students(ask)) {
answer[i] = 1;
}
ask[i] =0 ;
}
return answer;
}
int main() {
int T;
scanf("%d %lf %d", &N, &P, &T);
// You may perform any extra initialization here.
for (int i = 0; i < T; i++) {
std::vector<bool> answer = find_positive();
assert(answer.size() == (size_t)N);
std::string answer_str(N, ' ');
for (int j = 0; j < N; j++)
answer_str[j] = answer[j] ? '1' : '0';
printf("A %s\n", answer_str.c_str());
fflush(stdout);
char verdict;
scanf(" %c", &verdict);
if (verdict == 'W')
exit(0);
}
return 0;
}
详细
Subtask #1:
score: 10
Accepted
Test #1:
score: 10
Accepted
time: 9ms
memory: 3720kb
input:
1000 0.789673 1 P N P P P P P P N P P N P N P P P P P N P P P P P P N P P P P P P P P P P P P P P P P P P N N N P P P P N P P P P N N P P P N P P P P N P P P P P N N P N P P P P P N P P P P P P P P P P P P P P P P P P N N P N P P P P P P P P N P N P P P N N P P P P P P P P P P P P P P P P P P P P N ...
output:
Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
result:
points 1.0 1.0 translate:success
Test #2:
score: 10
Accepted
time: 5ms
memory: 3848kb
input:
1000 0.686378 1 N P N N N P N N P N P P N N P P P P N P P P N P P P N N P N P P P N N N P N P P P N P P P P P P N N P P P N P P P P P P P P P P P P P P P P P P N N P P N N N P P N P N P P P P P N P N N P P P N P N N P N P P P P N P N P P P P N P P N P P P N P N P P N P N N P P N P N P P N N P N N P ...
output:
Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
result:
points 1.0 1.0 translate:success
Test #3:
score: 10
Accepted
time: 0ms
memory: 3856kb
input:
1000 0.873862 1 P P P P P P P P P P P P P P P P P P P P N P P P P P P P P P P P P P P P N P P P P P P P P P N P P P P P P P P P P P P P N P P P P P P P P P N P P P N P P N P P P P P P N P P P P P N P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P N P P P P P N P P N P P P P P P P P ...
output:
Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
result:
points 1.0 1.0 translate:success
Test #4:
score: 10
Accepted
time: 0ms
memory: 4056kb
input:
1000 0.669578 1 P P N P P P P P N P N P P P N P P P P P P P N P P P P N N P N P N P P N P P N P P N P N P P P P P P P P P P P P P N N P P N P P N N P P N N P N P N P N P P N N P P P P P P P P P P N P P N P P N P P P P P P N P P P P N N N P N P P N P P N N P P N P P P N P P N P P P P P N P P N P P P ...
output:
Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
result:
points 1.0 1.0 translate:success
Test #5:
score: 10
Accepted
time: 4ms
memory: 3852kb
input:
1000 0.907052 1 P P P P P P P N P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P N P P P P N P P P P P P P P P P P P N P P P P P P P P P P P P P P P P P P P P P P N P P P P P N P P P P P P P P P N P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P N P P P N P P P P N N P ...
output:
Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
result:
points 1.0 1.0 translate:success
Test #6:
score: 10
Accepted
time: 3ms
memory: 4020kb
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 P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P N P P P P P N P P P N P P P P P N P P P P P P N P P P N P N P P N P P P N P P N P P P N N N P P P P N N P N N P P P P P P P N P N P P P P N P P P P P P P P P P P P P P P P P P ...
output:
Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
result:
points 1.0 1.0 translate:success
Test #7:
score: 10
Accepted
time: 0ms
memory: 3772kb
input:
1000 0.533576 1 P P P N N N N P P N N P N P N P P N P N N P N P N P P N P N P N P P P P N N N P P P P P N N P P N P P P P P N P P P P N N N N N P N P P P N P N P P P N P P P P N P N P P N N P N N P N P P N N P N P P N N P N N P N N P P N N N N P N P N N P N N P P N P P P P P N N N P P N P N P N P P ...
output:
Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
result:
points 1.0 1.0 translate:success
Test #8:
score: 10
Accepted
time: 11ms
memory: 3736kb
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 N N N N N N N N P N N N N P P P P N P N N P N N P N N P P N P P P N N P N P N N N N N P N P N P N P N N N P N N N N P N N P P P P P N N N P P N N N P N N P N P P P N P P N P P P N P N P P P P P N N N P P P P P P P P N N N P P N N N N N N P P ...
output:
Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
result:
points 1.0 1.0 translate:success
Test #9:
score: 10
Accepted
time: 12ms
memory: 3720kb
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 P N P N N N P N N P N N P N P P P N P P N P P P N P N P P P N P N N P P P N P N N N P N N N P P P N P P P N N P N N P P N N P N P N N P N N P N P P N N P P P P N P P P N N P P P P P P N P P P N P P N P P P P P P P P N P P P P N N P P P N P N P ...
output:
Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
result:
points 1.0 1.0 translate:success
Test #10:
score: 10
Accepted
time: 2ms
memory: 4048kb
input:
1000 0.157686 1 N N N N N N N N N N N N N P N N N P P N N P N N N N P N N N N N N N N N N N P N N N P P N N P N P N N N N N P N N N N N N N N N N N N N N N N N N P N N N N N N N N N N N N N N N P P N N N N N N N P P N N N N N N N N N P P P P N N N N N N N N N N N N N N N N N N P N N P N N N N N P N ...
output:
Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
result:
points 1.0 1.0 translate:success
Test #11:
score: 10
Accepted
time: 3ms
memory: 4056kb
input:
1000 0.380215 1 N N N P N N N P N N P N N N P P N P N N N P P P N P P N N N P N N N P N N N P P P P N N N N N P P N N N N N N N N N N N N N N P P N N N N P P N N N P N N N N N P N P N N P N N N N P N N N N P P P P P P P N N N N N N N N N N P N N P N N N P N N N N N N N N N P N P N P N N P P N N P P ...
output:
Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
result:
points 1.0 1.0 translate:success
Test #12:
score: 10
Accepted
time: 11ms
memory: 3760kb
input:
1000 0.432565 1 P N P N N P N N N P P P N P P N N N N N N N N N P P P N P P N N P P P P N P P N N N N P P P P N P N N P P P N N N N P N P N P N P N P P N N P N N P N N N P N P N N N P N N P N P N N N P N N P P P P P P N P N N N N N N N P P N P N N N N P P P N P N N P P P N P P P P P P N P N P P N P ...
output:
Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
result:
points 1.0 1.0 translate:success
Test #13:
score: 10
Accepted
time: 0ms
memory: 4052kb
input:
1000 0.509199 1 P P N P N N N P P N N N N N P N N P P N P P N P P P P P N N P N P P N P P P P P P P P P P N P P P N N P N P P N P N P N N P N P N P N N N N N P P N N N P P P N N P P P P N N N N P P N P N N N P P P P P N N N P P N P P N P N P P P N N P P N N N N N N P P P N N P P N N N N N N P P N N ...
output:
Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
result:
points 1.0 1.0 translate:success
Test #14:
score: 10
Accepted
time: 7ms
memory: 3856kb
input:
1000 0.381646 1 N N N P N N N N P P P N N N N N P N N N P N P N P N P N N N N N N N P P N N N N P P N N N N N P N N N N P N P N N N N P P P N P P N P P P N P N P P P N N N N N P N N P P N P P N P P N N N N P P N N P N N N N N P N N P P N N N N N P P N P N N P N N N P P N N P N N N N P P N N N N N P ...
output:
Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
result:
points 1.0 1.0 translate:success
Test #15:
score: 10
Accepted
time: 3ms
memory: 4064kb
input:
1000 0.42815 1 N P P N P N P P P N N P N N P N N P P P N N N N P P P N N N P P N P N N P N N N P P N N N N P N N P P N P N N N N P N N N N N P N P P N P P P P N N N P P P N P P P N P P N P N N N P N N P N N P P N P P N N P N N P P P P P P P N N N P N P N P N N N N N N N P N N N P N P P P P N N N P N...
output:
Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
result:
points 1.0 1.0 translate:success
Test #16:
score: 10
Accepted
time: 0ms
memory: 3848kb
input:
1000 1 1 P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P...
output:
Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
result:
points 1.0 1.0 translate:success
Test #17:
score: 10
Accepted
time: 0ms
memory: 4048kb
input:
1000 0 1 N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N...
output:
Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
result:
points 1.0 1.0 translate:success
Subtask #2:
score: 0
Wrong Answer
Test #18:
score: 0
Wrong Answer
time: 819ms
memory: 3792kb
input:
1000 0.001 300 N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N...
output:
Q 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
result:
points 0.0 0.0 translate:wrong