Submission #859372

#	Time	Username	Problem	Language	Result	Execution time	Memory
859372		1075508020060209tc	Election (BOI18_election)	C++14	28 / 100	3026 ms	6400 KiB

election

#include <bits/stdc++.h>
using namespace std;
#define int long long


void solve(vector<int>ar){
int n=ar.size()-1;
vector<int>br=ar;
priority_queue<int>pq;
int tot=0;
int ret=0;
for(int i=1;i<=n;i++){
    tot+=ar[i];
    if(tot<0){
        tot+=1;br[i]=0;ret++;
    }
}
tot=0;
for(int i=n;i>=1;i--){
   tot+=br[i];
    if(tot<0){
        tot+=1;br[i]=0;ret++;
    }
}
cout<<ret<<endl;

}


int n;int Q;
int ar[500005];

signed main(){
cin>>n;
{
    string s;
    cin>>s;
    for(int i=0;i<n;i++){
        if(s[i]=='C'){
            ar[i+1]=1;
        }else{
            ar[i+1]=-1;
        }
    }
}
cin>>Q;
while(Q--){
    int l;int r;
    cin>>l>>r;
    vector<int>vc;
    vc.push_back(0);
    for(int i=l;i<=r;i++){
        vc.push_back(ar[i]);
    }
    solve(vc);

}

}

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