oj.uz

Submission #1109085

# Submission time Handle Problem Language Result Execution time Memory
1109085 2024-11-06T02:07:16 Z 12345678 COVID tests (CEOI24_covid) C++17
10 / 100
 4979 ms 336 KB 
#include <cassert>
#include <cstdio>
#include <string>
#include <vector>
#include<iostream>
#include<stack>
#include<map>
#include<vector>
#include<string>
#include<cassert>
#include<unordered_map>
#include <queue>
#include <cstdint>
#include<cstring>
#include<limits.h>
#include<cmath>
#include<set>
#include<algorithm>
#include <iomanip>
#include<numeric>
#include<bitset>
using namespace std;
#define ll long long
#define f first
#define s second
#define pii pair<int,int>
#define ppii pair<int,pii>
#define vi vector<int>
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define F(n) for(int i=0;i<n;i++)
#define lb lower_bound
#define ub upper_bound
#define fastio ios::sync_with_stdio(false);cin.tie(NULL);
#pragma GCC optimize ("03,unroll-lopps")
/// You may use:
 
// The number of students
int N;
 
// The probability any given student is positive
double P;
string base="";
bool test_students(string a) {
    cout<<"Q "<<a<<endl;
    cout.flush();
    fflush(stdout);
    char answer;
    cin>>answer;
    return answer == 'P';
}
 
int T;
int answer[1001+10];
void solve(int l,int r){
    if(l==r)return void(answer[l]=1);
    int mid=l+(r-l)/2;
    string g=base;
    for(int i=l;i<=mid;i++)g[i]='1';
    if(test_students(g))solve(l,mid);
    for(int i=l;i<=mid;i++)g[i]='0';
    for(int i=mid+1;i<=r;i++)g[i]='1';
    if(test_students(g))solve(mid+1,r);
}
int main() {
    scanf("%d %lf %d", &N, &P, &T);
    for(int i=0;i<N;i++)base+='0';
    for (int i = 0; i < T; i++){
        for(int j=0;j<N;j++)answer[j]=0;
        solve(0,N-1);
        std::string answer_str(N, ' ');
        for (int j = 0; j < N; j++)
            answer_str[j] = answer[j] ? '1' : '0';
        cout<<"A "<<answer_str<<'\n';
        cout.flush();
        fflush(stdout);
        char verdict;
        cin>>verdict;
      	if (verdict=='W') exit(0);
    }
    return 0;
}

Compilation message

Main.cpp:36:40: warning: bad option '-funroll-lopps' to pragma 'optimize' [-Wpragmas]
   36 | #pragma GCC optimize ("03,unroll-lopps")
      |                                        ^
Main.cpp:45:28: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   45 | bool test_students(string a) {
      |                            ^
Main.cpp:56:23: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   56 | void solve(int l,int r){
      |                       ^
Main.cpp:66:10: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   66 | int main() {
      |          ^
Main.cpp: In function 'int main()':
Main.cpp:67:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   67 |     scanf("%d %lf %d", &N, &P, &T);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 336 KB Output is correct
2 Correct 28 ms 336 KB Output is correct
3 Correct 29 ms 336 KB Output is correct
4 Correct 36 ms 336 KB Output is correct
5 Correct 32 ms 336 KB Output is correct
6 Correct 31 ms 336 KB Output is correct
7 Correct 25 ms 336 KB Output is correct
8 Correct 22 ms 336 KB Output is correct
9 Correct 29 ms 336 KB Output is correct
10 Correct 16 ms 336 KB Output is correct
11 Correct 24 ms 336 KB Output is correct
12 Correct 29 ms 336 KB Output is correct
13 Correct 27 ms 336 KB Output is correct
14 Correct 22 ms 336 KB Output is correct
15 Correct 19 ms 336 KB Output is correct
16 Correct 24 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct

Subtask #2
0.0 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 99 ms 336 KB Output is correct (P=0.001, F=15.1, Q=17.7) -> 53.29 points
2 Correct 490 ms 336 KB Output is correct (P=0.005256, F=51.1, Q=77.0) -> 29.73 points
3 Correct 907 ms 336 KB Output is correct (P=0.011546, F=94.9, Q=149.0) -> 27.44 points
4 Correct 1862 ms 336 KB Output is correct (P=0.028545, F=191.5, Q=302.5) -> 27.12 points
5 Correct 2355 ms 336 KB Output is correct (P=0.039856, F=246.3, Q=387.5) -> 27.33 points
6 Correct 3501 ms 336 KB Output is correct (P=0.068648, F=366.2, Q=568.4) -> 28.05 points
7 Correct 4401 ms 336 KB Output is correct (P=0.104571, F=490.3, Q=750.4) -> 28.83 points
8 Execution timed out 4979 ms 336 KB Time limit exceeded (wall clock)
9 Halted 0 ms 0 KB -