Submission #565618

#	Time	Username	Problem	Language	Result	Execution time	Memory
565618		Abdulmohsen1284	Election (BOI18_election)	C++14	28 / 100	3039 ms	800 KiB

election

#include"bits/stdc++.h"
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
template<class x>
using ordered_set = tree<x, null_type,less<x>, rb_tree_tag,tree_order_statistics_node_update>;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
long long a[2000005],up[2000005];
 
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    long long n;
    cin>>n;
    string s;
    cin>>s;
    long long q;
    cin>>q;
    for(int i=0;i<q;i++)
    {
        long long fr,sc;
        cin>>fr>>sc;
        long long c=0,t=0,del=0;
        vector <char> cur;
        for(int i=fr-1;i<sc;i++)
        {
            cur.push_back(s[i]);
            if(s[i]=='C')
                c++;
            else
                t++;
            if(t>c)
            {
                t--;
                del++;
                cur.pop_back();
            }
        }
        reverse(cur.begin(),cur.end());
        c=0;
        t=0;
        for(int i=0;i<cur.size();i++)
        {
            //cout<<cur[i];
            if(cur[i]=='C')
                c++;
            else
                t++;
            if(t>c)
            {
                t--;
                del++;
            }
        }
        cout<<del<<"\n";
    }
}

Compilation message (stderr)

election.cpp: In function 'int main()':
election.cpp:44:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |         for(int i=0;i<cur.size();i++)
      |                     ~^~~~~~~~~~~

• Subtask 1: 28 / 28
• Subtask 2: 0 / 54
• Subtask 3: 0 / 18