oj.uz

Submission #960302

# Submission time Handle Problem Language Result Execution time Memory
960302 2024-04-10T08:00:04 Z Darren0724 Lamps (JOI19_lamps) C++17
4 / 100
 52 ms 37716 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:{1,3,4,5}){
                for(int j=0;j<6;j++){
                    dp[k][i]=min(dp[k][i],dp[j][i-1]+a[j][k]);
                }
            } 
        }
        if(s[i]==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:{0,2,4,5}){
                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 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 452 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Incorrect 0 ms 348 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #2
0 / 41.0

# 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 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 452 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Incorrect 0 ms 348 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Correct 0 ms 344 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 348 KB Output is correct
7 Correct 39 ms 37464 KB Output is correct
8 Correct 46 ms 37456 KB Output is correct
9 Correct 45 ms 37456 KB Output is correct
10 Correct 44 ms 37456 KB Output is correct
11 Correct 52 ms 37716 KB Output is correct
12 Correct 46 ms 37588 KB Output is correct
13 Correct 44 ms 37592 KB Output is correct
14 Correct 42 ms 37460 KB Output is correct

Subtask #4
0 / 49.0

# 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 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 452 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Incorrect 0 ms 348 KB Output isn't correct
10 Halted 0 ms 0 KB -