Submission #1085070

#	Time	Username	Problem	Language	Result	Execution time	Memory
1085070		elotelo966	Election (BOI18_election)	C++17	28 / 100	3062 ms	1572 KiB

election

#include <bits/stdc++.h>
using namespace std;
 
#define int long long
#define OYY LLONG_MAX
#define mod 998244353
#define faster ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define FOR for(int i=1;i<=n;i++)
#define mid (start+end)/2
#define lim 10005
#define fi first
#define se second

int32_t main(){
	faster
	int n;cin>>n;
	string s;cin>>s;
	int q;cin>>q;
	while(q--){
		vector<int> v(n,0);
		int top=0;
		int l,r;cin>>l>>r;
		
		l--;r--;
		
		for(int i=l;i<r;i++){
			if(s[i]=='C')top++;
			else{
				top--;
				if(top<0){
					v[i]=1;
					top++;
				}
			}
		}
		top=0;
		for(int i=r;i>=l;i--){
			//cout<<top<<endl;
			if(s[i]=='C')top++;
			else if(v[i]==1)continue;
			else{
				top--;
				if(top<0){
					top++;
					v[i]=1;
				}
			}
		}
		top=0;
		
		for(int i=l;i<=r;i++){
			top+=v[i];
			//cout<<v[i]<<endl;
		}
		
		cout<<top<<'\n';
		
	}
	return 0;
}

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