oj.uz

Submission #910931

# Submission time Handle Problem Language Result Execution time Memory
910931 2024-01-18T09:48:38 Z Darren0724 Lamps (JOI19_lamps) C++17
4 / 100
 63 ms 35920 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,INF,INF,
        0,1,1,1,INF,INF,
        0,1,1,1,INF,INF,
        0,1,1,0,1,1,
        0,1,0,0,0,1,
        0,0,1,0,1,0
    };
    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 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 856 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 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 1 ms 348 KB Output is correct
13 Incorrect 1 ms 348 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #2
0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 856 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 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 1 ms 348 KB Output is correct
13 Incorrect 1 ms 348 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 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 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 41 ms 35524 KB Output is correct
8 Correct 47 ms 35672 KB Output is correct
9 Correct 55 ms 35920 KB Output is correct
10 Correct 63 ms 35664 KB Output is correct
11 Correct 48 ms 35668 KB Output is correct
12 Correct 57 ms 35696 KB Output is correct
13 Correct 47 ms 35668 KB Output is correct
14 Correct 48 ms 35664 KB Output is correct

Subtask #4
0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 856 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 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 1 ms 348 KB Output is correct
13 Incorrect 1 ms 348 KB Output isn't correct
14 Halted 0 ms 0 KB -