oj.uz

Submission #1109403

# Submission time Handle Problem Language Result Execution time Memory
1109403 2024-11-06T15:58:00 Z 8pete8 COVID tests (CEOI24_covid) C++17
10 / 100
 4793 ms 720 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")
int N;
double P;
string ra;
string base="";
bool test_students(vector<int>mask){
    for(auto i:mask)base[i]='1';
    cout<<"Q "<<base<<endl;
    cout.flush();
    char answer;
    scanf(" %c", &answer);
    for(auto i:mask)base[i]='0';
    return answer == 'P';
}
int T;
int answer[1001+10];
vector<int>qry;
void solve(int ql,int qr){
    int l=ql,r=qr;
    while(l<=qr){
        r=qr;
        int pos=N;
        while(l<=r){
            int mid=l+(r-l)/2;
            for(int j=l;j<=mid;j++)qry.pb(j);
            if(test_students(qry))pos=min(pos,mid),r=mid-1;
            else l=mid+1;
            qry.clear();
        }
        if(pos==N)return;
        l=pos+1;
        answer[pos]=1;
    }
}
void find_positive(int gap){
    for(int j=0;(j*gap)<N;j++){
        solve(j*gap,min(N-1,(j*gap)+gap-1));
    }
}
int main() {
    scanf("%d %lf %d", &N, &P, &T);
    for(int j=0;j<N;j++)base+='0';
    for (int i = 0; i < T; i++) {
        for(int j=0;j<N;j++)answer[j]=0;
        int gap;
        if(T==1)gap=1;
        else if(P==0.001)gap=500;
        else if(P==0.005256)gap=125;
        else if(P==0.011546)gap=59;
        else if(P==0.028545)gap=25;
        else if(P==0.039856)gap=17;
        else if(P==0.068648)gap=10;
        else if (P==0.104571)gap=7;
        else if(P==0.158765)gap=4;
        else if(P==0.2)gap=4;
        else assert(0);
        find_positive(gap);
        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;
}

Compilation message

Main.cpp:36:40: warning: bad option '-funroll-lopps' to pragma 'optimize' [-Wpragmas]
   36 | #pragma GCC optimize ("03,unroll-lopps")
      |                                        ^
Main.cpp:41:35: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   41 | bool test_students(vector<int>mask){
      |                                   ^
Main.cpp:53:25: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   53 | void solve(int ql,int qr){
      |                         ^
Main.cpp:70:27: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   70 | void find_positive(int gap){
      |                           ^
Main.cpp:75:10: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   75 | int main() {
      |          ^
Main.cpp: In function 'bool test_students(std::vector<int>)':
Main.cpp:46:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   46 |     scanf(" %c", &answer);
      |     ~~~~~^~~~~~~~~~~~~~~~
Main.cpp: In function 'int main()':
Main.cpp:76:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   76 |     scanf("%d %lf %d", &N, &P, &T);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:99:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   99 |         scanf(" %c", &verdict);
      |         ~~~~~^~~~~~~~~~~~~~~~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 336 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 336 KB Output is correct
2 Correct 17 ms 336 KB Output is correct
3 Correct 18 ms 508 KB Output is correct
4 Correct 22 ms 336 KB Output is correct
5 Correct 17 ms 336 KB Output is correct
6 Correct 16 ms 336 KB Output is correct
7 Correct 17 ms 336 KB Output is correct
8 Correct 11 ms 336 KB Output is correct
9 Correct 17 ms 336 KB Output is correct
10 Correct 16 ms 336 KB Output is correct
11 Correct 16 ms 336 KB Output is correct
12 Correct 13 ms 336 KB Output is correct
13 Correct 18 ms 336 KB Output is correct
14 Correct 14 ms 336 KB Output is correct
15 Correct 18 ms 336 KB Output is correct
16 Correct 15 ms 336 KB Output is correct
17 Correct 13 ms 336 KB Output is correct

Subtask #2
0.0 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 152 ms 720 KB Output is correct (P=0.001, F=15.1, Q=25.3) -> 24.31 points
2 Correct 516 ms 336 KB Output is correct (P=0.005256, F=51.1, Q=86.0) -> 24.12 points
3 Correct 908 ms 336 KB Output is correct (P=0.011546, F=94.9, Q=156.6) -> 25.00 points
4 Correct 1758 ms 336 KB Output is correct (P=0.028545, F=191.5, Q=298.3) -> 27.86 points
5 Correct 2321 ms 336 KB Output is correct (P=0.039856, F=246.3, Q=393.0) -> 26.61 points
6 Correct 2959 ms 336 KB Output is correct (P=0.068648, F=366.2, Q=536.7) -> 31.44 points
7 Correct 3443 ms 336 KB Output is correct (P=0.104571, F=490.3, Q=628.9) -> 42.24 points
8 Execution timed out 4793 ms 336 KB Time limit exceeded (wall clock)
9 Halted 0 ms 0 KB -