Submission #565600

#	Time	Username	Problem	Language	Result	Execution time	Memory
565600		Dodo	Election (BOI18_election)	C++14	28 / 100	3063 ms	1172 KiB

election

#include <bits/stdc++.h>
#define ll long long
#define endl '\n'
#define pb push_back
using namespace std;

int main()
{
  ll n,q;
  string s;
  cin>>n>>s>>q;
  while(q--)
  {
    ll x,y;
    cin>>x>>y;
    x--;
    y--;
    ll arr[n]={};
    ll t=0,c=0;
    for(int i=x;i<=y;i++)
    {
      if(s[i]=='C')c++;
      else t++;
      if(t>c)
      {
        arr[i]++;
        t--;
      }
    }
    t=0,c=0;
    for(int i=y;i>=x;i--)
    {
      if(s[i]=='C')c++;
      else if(arr[i]==0)t++;
      if(t>c)
      {
        arr[i]++;
        t--;
      }
    }
    ll ans=0;
    for(int i=0;i<n;i++)
      if(arr[i]>0)ans++;
    cout<<ans<<endl;
  }
}

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