Submission #721491

#	Time	Username	Problem	Language	Result	Execution time	Memory
721491		Darren0724	Street Lamps (APIO19_street_lamps)	C++17	20 / 100	564 ms	12964 KiB

street_lamps

#include<bits/stdc++.h>
using namespace std;
#define int long long
#define all(x) x.begin(),x.end()
const int INF=9e18;

int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n,q;cin>>n>>q;
    vector<int> a(n);
    for(int i=0;i<n;i++){
        char c;cin>>c;
        a[i]=c-'0'-1;
    }
    vector<int> ans(n);
    for(int i=1;i<=q;i++){
        string s;cin>>s;
        if(s=="query"){
            int x,y;cin>>x>>y;x--;y--;
            if(a[x]==-1){
                cout<<ans[x]<<endl;
            }
            else{
                cout<<ans[x]+i-a[x]<<endl;
            }
        }
        else{
            int p;cin>>p;p--;
            if(a[p]==-1){
                a[p]=i;
            }
            else{
                ans[p]+=i-a[p];
                a[p]=-1;
            }
        }
    }

    return 0;
}

• Subtask 1: 0 / 20
• Subtask 2: 20 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20