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Submission #447841

# Submission time Handle Problem Language Result Execution time Memory
447841 2021-07-27T17:32:19 Z SirCovidThe19th Swap (BOI16_swap) C++14
0 / 100
 1 ms 332 KB 
#include <bits/stdc++.h>
using namespace std; 

int n, A[200005]; map<pair<int, int>, int> swp;

int dp(int i, int j){ int l = i*2, r = i*2+1, ret = i; 
    if (swp.count({i, j})) return swp[{i, j}]; 
    else if (r > n) ret = (A[l] < j) ? l : i;   
    else if (A[l] < min(j, A[r])) ret = dp(l, j); 
    else if (A[r] < min(j, A[l])){
        int mn = min(j, A[l]);
        if (dp(l, mn) < dp(r, mn)) ret = ((mn == j) ? dp(l, j) : dp(r, j));
        else ret = ((mn == j) ? dp(r, j) : dp(l, j));
    }return swp[{i, j}] = ret;
}

int main(){
    cin >> n; for (int i = 1; i <= n; i++) cin >> A[i];
    for (int i = 1; i <= n; i++){ int l = i*2, r = i*2+1;
        if (l > n){ continue; } 
        else if (r > n){ if (A[l] < A[i]) swap(A[l], A[i]); }
        else if (A[l] < min(A[i], A[r])) swap(A[l], A[i]);
        else if (A[r] < min(A[i], A[l])){
            int mn = min(A[i], A[l]), mx = max(A[i], A[l]); 
            A[i] = A[r];
            if (dp(l, mn) < dp(r, mn)) tie(A[l], A[r]) = {mn, mx};
            else tie(A[l], A[r]) = {mx, mn};
        }
    }for (int i = 1; i <= n; i++) cout<<A[i]<<" ";
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 224 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Incorrect 1 ms 332 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 224 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Incorrect 1 ms 332 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 224 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Incorrect 1 ms 332 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 224 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Incorrect 1 ms 332 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #5
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 224 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Incorrect 1 ms 332 KB Output isn't correct
5 Halted 0 ms 0 KB -