oj.uz

Submission #942591

# Submission time Handle Problem Language Result Execution time Memory
942591 2024-03-11T00:23:23 Z irmuun Election (BOI18_election) C++17
28 / 100
 3000 ms 1088 KB 
#include<bits/stdc++.h>

using namespace std;

#define ll long long
#define pb push_back
#define ff first
#define ss second
#define all(s) s.begin(),s.end()
#define rall(s) s.rbegin(),s.rend()

int main(){
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    ll n;
    cin>>n;
    string s;
    cin>>s;
    ll q;
    cin>>q;
    bool del[n+5];
    while(q--){
        ll l,r;
        cin>>l>>r;
        fill(del,del+n,0);
        string t=s.substr(l-1,r-l+1);
        ll cur=0,cnt=0;
        for(ll i=0;i<t.size();i++){
            if(del[i]==false){
                if(t[i]=='C') cur++;
                else cur--;
                if(cur<0){
                    cnt++;
                    cur++;
                    del[i]=true;
                }
            }
        }
        cur=0;
        for(ll i=t.size()-1;i>=0;i--){
            if(del[i]==false){
                if(t[i]=='C') cur++;
                else cur--;
                if(cur<0){
                    cnt++;
                    cur++;
                    del[i]=true;
                }
            }
        }
        cout<<cnt<<"\n";
    }
}

Compilation message

election.cpp: In function 'int main()':
election.cpp:27:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |         for(ll i=0;i<t.size();i++){
      |                    ~^~~~~~~~~

Subtask #1
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 348 KB Output is correct
2 Correct 5 ms 468 KB Output is correct
3 Correct 5 ms 344 KB Output is correct
4 Correct 5 ms 348 KB Output is correct
5 Correct 3 ms 348 KB Output is correct

Subtask #2
0 / 54.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 348 KB Output is correct
2 Correct 5 ms 468 KB Output is correct
3 Correct 5 ms 344 KB Output is correct
4 Correct 5 ms 348 KB Output is correct
5 Correct 3 ms 348 KB Output is correct
6 Execution timed out 3048 ms 1088 KB Time limit exceeded
7 Halted 0 ms 0 KB -

Subtask #3
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 348 KB Output is correct
2 Correct 5 ms 468 KB Output is correct
3 Correct 5 ms 344 KB Output is correct
4 Correct 5 ms 348 KB Output is correct
5 Correct 3 ms 348 KB Output is correct
6 Execution timed out 3048 ms 1088 KB Time limit exceeded
7 Halted 0 ms 0 KB -