oj.uz

Submission #911127

# Submission time Handle Problem Language Result Execution time Memory
911127 2024-01-18T13:27:45 Z Darren0724 Lamps (JOI19_lamps) C++17
4 / 100
 49 ms 37632 KB 
#pragma GCC optimize("Ofast","O3","unroll-loops")
#pragma GCC target("avx2")
#include <bits/stdc++.h>
using namespace std;
#define LCBorz ios_base::sync_with_stdio(false); cin.tie(0);
#define all(x) x.begin(), x.end()
#define endl '\n'
const int N=200005;
const int INF=1e9;

int32_t main() {
    LCBorz;
    int n;cin>>n;
    vector<int> s(n+1),t(n+1);
    for(int i=1;i<=n;i++){
        char c;cin>>c;
        s[i]=c-'0';
    }
    for(int i=1;i<=n;i++){
        char c;cin>>c;
        t[i]=c-'0';
    }
    vector dp(6,vector(n+1,INF));
    dp[0][0]=0;
    // 0->none 1->no0 2->no1 3->flip 4->flip0 5-> flip1
    int a[6][6]={
        0,1,1,1,2,2,
        0,0,1,1,1,2,
        0,1,0,1,2,1,
        0,1,1,0,1,1,
        0,0,1,0,0,1,
        0,1,0,0,1,0
    };
    for(int i=1;i<=n;i++){
        if(s[i]==0&&t[i]==0){
            for(int k:{0,1,4}){
                for(int j=0;j<6;j++){
                    dp[k][i]=min(dp[k][i],dp[j][i-1]+a[j][k]);
                }
            } 
        }
        if(s[i]==1&&t[i]==0){
            for(int k:{1,3,4}){
                for(int j=0;j<6;j++){
                    dp[k][i]=min(dp[k][i],dp[j][i-1]+a[j][k]);
                }
            } 
        }
        if(s[i]==0&&t[i]==1){
            for(int k:{2,3,5}){
                for(int j=0;j<6;j++){
                    dp[k][i]=min(dp[k][i],dp[j][i-1]+a[j][k]);
                }
            } 
        }
        if(s[i]==1&&t[i]==1){
            for(int k:{0,2,5}){
                for(int j=0;j<6;j++){
                    dp[k][i]=min(dp[k][i],dp[j][i-1]+a[j][k]);
                }
            } 
        }
    }
    int ans=INF;
    for(int i=0;i<6;i++){
        ans=min(ans,dp[i][n]);
    }
    cout<<ans<<endl;
 
    return 0;
}

Subtask #1
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 504 KB Output is correct
2 Correct 1 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 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 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 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Incorrect 1 ms 344 KB Output isn't correct
17 Halted 0 ms 0 KB -

Subtask #2
0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 504 KB Output is correct
2 Correct 1 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 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 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 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Incorrect 1 ms 344 KB Output isn't correct
17 Halted 0 ms 0 KB -

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 452 KB Output is correct
4 Correct 1 ms 456 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 42 ms 37632 KB Output is correct
8 Correct 49 ms 37460 KB Output is correct
9 Correct 48 ms 37460 KB Output is correct
10 Correct 49 ms 37464 KB Output is correct
11 Correct 49 ms 37424 KB Output is correct
12 Correct 49 ms 37552 KB Output is correct
13 Correct 49 ms 37460 KB Output is correct
14 Correct 46 ms 37460 KB Output is correct

Subtask #4
0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 504 KB Output is correct
2 Correct 1 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 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 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 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Incorrect 1 ms 344 KB Output isn't correct
17 Halted 0 ms 0 KB -