Submission #967970

#	Time	Username	Problem	Language	Result	Execution time	Memory
967970		Darren0724	Line Town (CCO23_day1problem3)	C++17	0 / 25	1 ms	352 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#define all(x) x.begin(),x.end()
#define ll long long 
#define LCBorz ios_base::sync_with_stdio(false);cin.tie(0);
const int N=1000005;
const int mod=1e6+3;

int32_t main(){
    LCBorz;
    int n;cin>>n;
    vector<int> v(n+1);
    for(int i=1;i<=n;i++){
        cin>>v[i];
    }
    int ans=0;
    int lz=0;
    for(int i=n;i>=1;i--){
        if((v[i]<0)^lz){
            if(i%2==0){
                cout<<0<<endl;
                return 0;
            }
            lz^=1;
            ans+=(i-1);
        }
    }
    cout<<ans<<endl;
    
    return 0;
}

• Subtask 1: 0 / 3
• Subtask 2: 0 / 3
• Subtask 3: 0 / 3
• Subtask 4: 0 / 4
• Subtask 5: 0 / 4
• Subtask 6: 0 / 3
• Subtask 7: 0 / 2
• Subtask 8: 0 / 3