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답안 #968247

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
968247 2024-04-23T08:46:53 Z Darren0724 Line Town (CCO23_day1problem3) C++17
6 / 25
 37 ms 14060 KB 
#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;
const ll INF=1e18;
int32_t main(){
    LCBorz;
    int n;cin>>n;
    vector<ll> v(n+2),pre(n+2),suf(n+2);
    for(int i=1;i<=n;i++){
        cin>>v[i];
        assert(abs(v[i])==1);
    }
    ll cnt=0;
    vector<int> st;
    for(int i=1;i<=n;i++){
        if(v[i]==1){
            if(st.size()&&(st.back()+i)%2==1){
                cnt+=(i-st.back());
                st.pop_back();
            } 
            else{
                st.push_back(i);
            }
        }
        if(st.size()==0){
            pre[i]=cnt;
        }
        else{
            pre[i]=INF;
        }
    }
    st.clear();
    cnt=0;
    for(int i=n;i>=1;i--){
        if(v[i]==-1){
            if(st.size()&&(st.back()+i)%2==1){
                cnt+=(st.back()-i);
                st.pop_back();
            } 
            else{
                st.push_back(i);
            }
        }
        if(st.size()==0){
            suf[i]=cnt;
        }
        else{
            suf[i]=INF;
        }
    }
    ll ans=INF;
    for(int i=0;i<=n;i++){
        ans=min(ans,pre[i]+suf[i+1]);
        //cout<<pre[i]<<' '<<suf[i+1]<<endl;
    }
    if(ans==INF){
        cout<<-1<<endl;
    }
    else{
        cout<<ans<<endl;
    }
    
    return 0;
}
/*
20
1 1 1 1 1 1 1 1 1 1 1 1 -1 1 1 -1 1 -1 -1 1
4
*/

Subtask #1
3.0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 456 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 460 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct

Subtask #2
3.0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 456 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 460 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 37 ms 13404 KB Output is correct
16 Correct 37 ms 13404 KB Output is correct
17 Correct 37 ms 13392 KB Output is correct
18 Correct 34 ms 13400 KB Output is correct
19 Correct 34 ms 13428 KB Output is correct
20 Correct 27 ms 14036 KB Output is correct
21 Correct 27 ms 14040 KB Output is correct
22 Correct 27 ms 14048 KB Output is correct
23 Correct 27 ms 14048 KB Output is correct
24 Correct 28 ms 14060 KB Output is correct

Subtask #3
0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 456 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 460 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Runtime error 1 ms 604 KB Execution killed with signal 6
15 Halted 0 ms 0 KB -

Subtask #4
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 456 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 460 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 37 ms 13404 KB Output is correct
16 Correct 37 ms 13404 KB Output is correct
17 Correct 37 ms 13392 KB Output is correct
18 Correct 34 ms 13400 KB Output is correct
19 Correct 34 ms 13428 KB Output is correct
20 Correct 27 ms 14036 KB Output is correct
21 Correct 27 ms 14040 KB Output is correct
22 Correct 27 ms 14048 KB Output is correct
23 Correct 27 ms 14048 KB Output is correct
24 Correct 28 ms 14060 KB Output is correct
25 Runtime error 1 ms 604 KB Execution killed with signal 6
26 Halted 0 ms 0 KB -

Subtask #5
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 604 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #6
0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 604 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #7
0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 456 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 460 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Runtime error 1 ms 604 KB Execution killed with signal 6
15 Halted 0 ms 0 KB -

Subtask #8
0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 456 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 460 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 37 ms 13404 KB Output is correct
16 Correct 37 ms 13404 KB Output is correct
17 Correct 37 ms 13392 KB Output is correct
18 Correct 34 ms 13400 KB Output is correct
19 Correct 34 ms 13428 KB Output is correct
20 Correct 27 ms 14036 KB Output is correct
21 Correct 27 ms 14040 KB Output is correct
22 Correct 27 ms 14048 KB Output is correct
23 Correct 27 ms 14048 KB Output is correct
24 Correct 28 ms 14060 KB Output is correct
25 Runtime error 1 ms 604 KB Execution killed with signal 6
26 Halted 0 ms 0 KB -