oj.uz

Submission #919290

# Submission time Handle Problem Language Result Execution time Memory
919290 2024-01-31T14:31:40 Z phong Swap (BOI16_swap) C++17
68 / 100
 610 ms 262144 KB 
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,fma")
#pragma GCC optimize("unroll-loops")
#include<bits/stdc++.h>

#define ll long long
const int nmax = 2e5 + 5, dmax = 2e5 + 5;
const ll oo = 1e18, base = 311;
const int lg = 18, M =2e2 + 5;
const ll mod = 1e9 + 7;
#define pii pair<ll, int>
#define fi first
#define se second
#define debug(a, n) for(int i = 1; i <= n; ++i) cout << a[i] << ' ';
using namespace std;

int n, d[nmax];
vector<int> adj[nmax], tmp;
vector<vector<int>> dp[nmax];
void get(vector<int> &a, vector<int> &b, vector<int> &c){
    int i = 1, j = 1;
    for(int cur = 0; cur <= lg; ++cur){
        int x = __lg(i), y = __lg(j);
        while(i <= b.size() && __lg(i) <= cur){
            a.push_back(b[i - 1]);
            ++i;
        }
        while(j <= c.size() && __lg(j) <= cur){
            a.push_back(c[j - 1]);
            ++j;
        }
    }
}
void calc(int x,  vector<int> &b, vector<int> &c){
    tmp.clear();
    tmp.push_back(x);
    get(tmp, b, c);
}
void ckmin(vector<int> &a, vector<int> &b){
    if(a.empty()) a = b;
    else{
        for(int i = 0; i < a.size(); ++i){
            int u = a[i], v = b[i];
            if(d[u] > d[v]){
                a = b;
                return;
            }
            if(d[u] < d[v]) return;
        }
    }
}
vector<int> gg;
int L[nmax], R[nmax];

void update(int u){
    dp[u].resize(adj[u].size() + 1);

    if(u * 2 > n){
        for(int i = 0; i < adj[u].size(); ++i){
            dp[u][i].push_back(adj[u][i]);
        }
    }
    else{
        if(u * 2 + 1 > n){

            for(int i = 0; i < adj[u * 2].size(); ++i) L[adj[u * 2][i]] = i;
            for(int j = 0; j < adj[u].size(); ++j){
                int x = adj[u][j];
                calc(x, dp[u * 2][L[u * 2]], gg);
                ckmin(dp[u][j], tmp);
                calc(u * 2,dp[u * 2][L[x]], gg);
                ckmin(dp[u][j], tmp);
            }
            for(int i = 0; i < adj[u * 2].size(); ++i){
                dp[u * 2][i].clear();
            }
        }
        else{
            for(int i = 0; i < adj[u * 2].size(); ++i) L[adj[u * 2][i]] = i;
            for(int i = 0; i < adj[u * 2 + 1].size(); ++i) R[adj[u * 2 + 1][i]] = i;
            for(int j = 0; j < adj[u].size(); ++j){
                int x = adj[u][j];
                calc(x, dp[u * 2][L[u * 2]], dp[u * 2 + 1][R[u * 2 + 1]]);
                ckmin(dp[u][j], tmp);

                calc(u * 2, dp[u * 2][L[x]], dp[u * 2 + 1][R[u * 2 + 1]]);
                ckmin(dp[u][j], tmp);

                calc(u * 2 + 1, dp[u * 2][L[x]], dp[u * 2 + 1][R[u * 2]]);
                ckmin(dp[u][j], tmp);

                calc(u * 2 + 1, dp[u * 2][L[u * 2]], dp[u * 2 + 1][R[x]]);
                ckmin(dp[u][j], tmp);
//                cout << u << ' ' << x << " # ";
//                for(auto p : dp[u][j]) cout << p << ' ';
//                cout << "\n";
            }
            for(int i = 0; i < adj[u * 2].size(); ++i) dp[u * 2][i].clear();
            for(int i = 0; i < adj[u * 2 + 1].size(); ++i) dp[u * 2 + 1][i].clear();

        }
    }

}
main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
//    freopen("code.inp", "r", stdin);
//    freopen("code.out", "w", stdout);
    cin >> n;
    for(int i = 1; i <= n; ++i) cin >> d[i];
    for(int i = n; i >= 1; --i){
//        adj[i].push_back(i);
        int u = i;
        while(u > 0){
            if(u - 1 > 0 && u % 2 == 1) adj[i].push_back(u - 1);
            adj[i].push_back(u);
            u /= 2;
        }
//        cout << i << '#';
//        for(auto p : adj[i])cout << p << ' ';
//        cout << "\n";
    }
    for(int i = n; i >= 1; --i) update(i);
//    for(int i )
    for(auto p : dp[1][0]) cout << d[p] << ' ';

}
/*
5 2
3 2
2 5
3 4
3 1

*/

Compilation message

swap.cpp: In function 'void get(std::vector<int>&, std::vector<int>&, std::vector<int>&)':
swap.cpp:24:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |         while(i <= b.size() && __lg(i) <= cur){
      |               ~~^~~~~~~~~~~
swap.cpp:28:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |         while(j <= c.size() && __lg(j) <= cur){
      |               ~~^~~~~~~~~~~
swap.cpp:23:13: warning: unused variable 'x' [-Wunused-variable]
   23 |         int x = __lg(i), y = __lg(j);
      |             ^
swap.cpp:23:26: warning: unused variable 'y' [-Wunused-variable]
   23 |         int x = __lg(i), y = __lg(j);
      |                          ^
swap.cpp: In function 'void ckmin(std::vector<int>&, std::vector<int>&)':
swap.cpp:42:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |         for(int i = 0; i < a.size(); ++i){
      |                        ~~^~~~~~~~~~
swap.cpp: In function 'void update(int)':
swap.cpp:59:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |         for(int i = 0; i < adj[u].size(); ++i){
      |                        ~~^~~~~~~~~~~~~~~
swap.cpp:66:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |             for(int i = 0; i < adj[u * 2].size(); ++i) L[adj[u * 2][i]] = i;
      |                            ~~^~~~~~~~~~~~~~~~~~~
swap.cpp:67:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   67 |             for(int j = 0; j < adj[u].size(); ++j){
      |                            ~~^~~~~~~~~~~~~~~
swap.cpp:74:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   74 |             for(int i = 0; i < adj[u * 2].size(); ++i){
      |                            ~~^~~~~~~~~~~~~~~~~~~
swap.cpp:79:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   79 |             for(int i = 0; i < adj[u * 2].size(); ++i) L[adj[u * 2][i]] = i;
      |                            ~~^~~~~~~~~~~~~~~~~~~
swap.cpp:80:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   80 |             for(int i = 0; i < adj[u * 2 + 1].size(); ++i) R[adj[u * 2 + 1][i]] = i;
      |                            ~~^~~~~~~~~~~~~~~~~~~~~~~
swap.cpp:81:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   81 |             for(int j = 0; j < adj[u].size(); ++j){
      |                            ~~^~~~~~~~~~~~~~~
swap.cpp:98:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   98 |             for(int i = 0; i < adj[u * 2].size(); ++i) dp[u * 2][i].clear();
      |                            ~~^~~~~~~~~~~~~~~~~~~
swap.cpp:99:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   99 |             for(int i = 0; i < adj[u * 2 + 1].size(); ++i) dp[u * 2 + 1][i].clear();
      |                            ~~^~~~~~~~~~~~~~~~~~~~~~~
swap.cpp: At global scope:
swap.cpp:105:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  105 | main(){
      | ^~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 11096 KB Output is correct
2 Correct 4 ms 11096 KB Output is correct
3 Correct 4 ms 11096 KB Output is correct
4 Correct 5 ms 11096 KB Output is correct
5 Correct 4 ms 11096 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 11096 KB Output is correct
2 Correct 4 ms 11096 KB Output is correct
3 Correct 4 ms 11096 KB Output is correct
4 Correct 5 ms 11096 KB Output is correct
5 Correct 4 ms 11096 KB Output is correct
6 Correct 4 ms 11100 KB Output is correct
7 Correct 4 ms 11096 KB Output is correct
8 Correct 4 ms 11096 KB Output is correct
9 Correct 5 ms 11096 KB Output is correct
10 Correct 4 ms 11096 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 11096 KB Output is correct
2 Correct 4 ms 11096 KB Output is correct
3 Correct 4 ms 11096 KB Output is correct
4 Correct 5 ms 11096 KB Output is correct
5 Correct 4 ms 11096 KB Output is correct
6 Correct 4 ms 11100 KB Output is correct
7 Correct 4 ms 11096 KB Output is correct
8 Correct 4 ms 11096 KB Output is correct
9 Correct 5 ms 11096 KB Output is correct
10 Correct 4 ms 11096 KB Output is correct
11 Correct 9 ms 12124 KB Output is correct
12 Correct 6 ms 12120 KB Output is correct
13 Correct 6 ms 12120 KB Output is correct
14 Correct 6 ms 12120 KB Output is correct
15 Correct 6 ms 12120 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 11096 KB Output is correct
2 Correct 4 ms 11096 KB Output is correct
3 Correct 4 ms 11096 KB Output is correct
4 Correct 5 ms 11096 KB Output is correct
5 Correct 4 ms 11096 KB Output is correct
6 Correct 4 ms 11100 KB Output is correct
7 Correct 4 ms 11096 KB Output is correct
8 Correct 4 ms 11096 KB Output is correct
9 Correct 5 ms 11096 KB Output is correct
10 Correct 4 ms 11096 KB Output is correct
11 Correct 9 ms 12124 KB Output is correct
12 Correct 6 ms 12120 KB Output is correct
13 Correct 6 ms 12120 KB Output is correct
14 Correct 6 ms 12120 KB Output is correct
15 Correct 6 ms 12120 KB Output is correct
16 Correct 286 ms 103548 KB Output is correct
17 Correct 285 ms 103328 KB Output is correct
18 Correct 290 ms 103356 KB Output is correct
19 Correct 282 ms 103436 KB Output is correct
20 Correct 311 ms 103300 KB Output is correct

Subtask #5
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 11096 KB Output is correct
2 Correct 4 ms 11096 KB Output is correct
3 Correct 4 ms 11096 KB Output is correct
4 Correct 5 ms 11096 KB Output is correct
5 Correct 4 ms 11096 KB Output is correct
6 Correct 4 ms 11100 KB Output is correct
7 Correct 4 ms 11096 KB Output is correct
8 Correct 4 ms 11096 KB Output is correct
9 Correct 5 ms 11096 KB Output is correct
10 Correct 4 ms 11096 KB Output is correct
11 Correct 9 ms 12124 KB Output is correct
12 Correct 6 ms 12120 KB Output is correct
13 Correct 6 ms 12120 KB Output is correct
14 Correct 6 ms 12120 KB Output is correct
15 Correct 6 ms 12120 KB Output is correct
16 Correct 286 ms 103548 KB Output is correct
17 Correct 285 ms 103328 KB Output is correct
18 Correct 290 ms 103356 KB Output is correct
19 Correct 282 ms 103436 KB Output is correct
20 Correct 311 ms 103300 KB Output is correct
21 Runtime error 610 ms 262144 KB Execution killed with signal 9
22 Halted 0 ms 0 KB -