oj.uz

Submission #770385

# Submission time Handle Problem Language Result Execution time Memory
770385 2023-07-01T06:41:42 Z ttamx Copy and Paste 3 (JOI22_copypaste3) C++14
5 / 100
 496 ms 120168 KB 
#include<bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef tuple<ll,int,int> t3;

const int N=2505;
const int mod=1e9+7;

int n;
ll a,b,c;
string s;
ll dp[N][N];
bool vis[N][N];
ll hsh[N];

ll sub(int l,int r){
    return (hsh[r]-hsh[l-1]+mod)%mod;
}

priority_queue<t3,vector<t3>,greater<t3>> pq;

int main(){
    cin.tie(nullptr)->sync_with_stdio(false);
    cin >> n >> s >> a >> b >> c;
    s=" "+s;
    for(int i=1;i<=n;i++)hsh[i]=(hsh[i-1]*29%mod+s[i]-'a')%mod;
    for(int i=0;i<=n;i++)for(int j=0;j<=n;j++)dp[i][j]=1e18;
    dp[0][0]=0;
    pq.emplace(0,0,0);
    while(!pq.empty()){
        auto [d,i,j]=pq.top();
        pq.pop();
        if(vis[i][j])continue;
        vis[i][j]=true;
        if(i==n){
            cout << d;
            return 0;
        }
        if(i+1<=n&&d+a<dp[i+1][j]){
            dp[i+1][j]=d+a;
            pq.emplace(dp[i+1][j],i+1,j);
        }
        if(d+b<dp[0][i]){
            dp[0][i]=d+b;
            pq.emplace(dp[0][i],0,i);
        }
        if(i+j<=n&&sub(1,j)==sub(i+1,i+j)){
            if(d+c<dp[i+j][j]){
                dp[i+j][j]=d+c;
                pq.emplace(dp[i+j][j],i+j,j);
            }
        }
    }
}

Compilation message

copypaste3.cpp: In function 'int main()':
copypaste3.cpp:33:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   33 |         auto [d,i,j]=pq.top();
      |              ^

Subtask #1
0 / 1.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 340 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 191 ms 45172 KB Output is correct
4 Correct 110 ms 47088 KB Output is correct
5 Correct 489 ms 80104 KB Output is correct
6 Correct 24 ms 50900 KB Output is correct
7 Correct 496 ms 120168 KB Output is correct
8 Correct 27 ms 54320 KB Output is correct
9 Correct 24 ms 55636 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 340 KB Output is correct

Subtask #3
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 340 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 340 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 32.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 340 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 38.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 340 KB Output isn't correct
2 Halted 0 ms 0 KB -