Submission #198150

#	Time	Username	Problem	Language	Result	Execution time	Memory
198150		forelax	Election (BOI18_election)	C++14	28 / 100	3010 ms	2268 KiB

election

#include<bits/stdc++.h>
using namespace std;
int main(){
	int n;
	cin>>n;
	vector<int> v(n);
	for(int i = 0 ; i < n ; i ++){
		char ch;cin>>ch;
		v[i]=ch=='C'?1:-1;
	}
	int q;
	cin>>q;
	vector<int> tm(n,-1);
	for(int i = 0,l,r ; i < q ; i ++){
		cin>>l>>r;l--;r--;
		int cnt=0,rez=0;
		for(int j = l ; j <= r ; j ++){
			cnt+=v[j];
			if(cnt==-1){
				cnt++;
				tm[j]=i;
				rez++;
			}
		}
		cnt=0;
		for(int j = r ; j >= l ; j --){
			if(tm[j]==i)continue;
			cnt+=v[j];
			if(cnt==-1){
				cnt++;
				tm[j]=i;
				rez++;
			}
		}
		cout<<rez<<endl;
	}
}

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