oj.uz

Submission #167616

# Submission time Handle Problem Language Result Execution time Memory
167616 2019-12-09T06:13:27 Z Rakhmand Bootfall (IZhO17_bootfall) C++14
13 / 100
 33 ms 9716 KB 
//
//  ROIGold.cpp
//  Main calisma
//
//  Created by Rakhman on 05/02/2019.
//  Copyright © 2019 Rakhman. All rights reserved.
//
 
#include <cstring>
#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <queue>
#include <cmath>
#include <cstdlib>
#include <ctime>
#include <cassert>
#include <iterator>
 
#define ios ios_base::sync_with_stdio(0), cout.tie(0), cin.tie(0);
#define S second
#define F first
#define pb push_back
#define nl '\n'
#define NL cout << '\n';
#define EX exit(0)
#define all(s) s.begin(), s.end()
#define no_answer return cout << 0, 0;
#define FOR(i, start, finish, k) for(int i = start; i <= finish; i += k)
 
const int MXN = 4e5 + 200;
const long long MNN = 4e2 + 200;
const long long MOD = 1e9 + 7;
const long long INF = 1e18;
const int OO = 1e9 + 500;
 
typedef long long llong;
typedef unsigned long long ullong;
 
using namespace std;
 
int n, k, a[MXN], cnt, pos[200000], num[1000], dp[510][510][510];
int sum = 0;
vector<int> v;

void precalc(){
    bitset<126000> p;
    p[0] = 1;
    for(int i = 1; i <= n; i++){
        p |= p << a[i];
    }
    if(p[sum / 2] == 0) {
        cout << 0;
        exit(0);
    }
    int kek = 0;
    for(int i = 0; i <= sum; i++){
        if(p[i] == 1){
            pos[i] = kek;
            num[kek] = i;
            kek++;
        }
        else{
            pos[i] = -1;
        }
    }
    dp[0][1][0] = 1;
    for(int no = 1; no <= n; no++){
        dp[no][0][0] = 1;
        for(int i = 1; i <= n; i++){
            for(int j = 0; j <= pos[sum]; j++){
                dp[no][i][j] = dp[no][i - 1][j];
                int l = num[j];
                if(num[j] - a[i] >= 0 && pos[l - a[i]] != -1 && i != no){
                    dp[no][i][j] |= dp[no][i - 1][pos[l - a[i]]];
                }
            }
        }
    }
}






int main () {
    ios;
    cin >> n;
    for(int i = 1; i <= n; i++){
        cin >> a[i];
        sum += a[i];
        cnt += a[i] % 2;
    }
    if(sum % 2 == 1) no_answer;
    if(cnt != 0 && cnt != n) no_answer;
    precalc();
    for(int i = a[1] % 2; i <= sum; i += 2){
        bool ok = 1;
        for(int j = 1; j <= n; j++){
            if((sum + i - a[j]) / 2 - i < 0 || pos[(sum + i - a[j]) / 2 - i] == -1 || dp[j][n][pos[(sum + i - a[j]) / 2 - i]] == 0){
                ok = 0;
                break;
            }
        }
        if(ok == 1) v.pb(i);
    }
    cout << v.size() << nl;
    for(int i = 0; i < v.size(); i++){
        cout << v[i] << ' ';
    }
}

Compilation message

bootfall.cpp: In function 'int main()':
bootfall.cpp:121:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i < v.size(); i++){
                    ~~^~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 504 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 3 ms 760 KB Output is correct
6 Correct 2 ms 504 KB Output is correct
7 Correct 2 ms 504 KB Output is correct
8 Correct 3 ms 764 KB Output is correct
9 Correct 2 ms 380 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 504 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 3 ms 760 KB Output is correct
6 Correct 2 ms 504 KB Output is correct
7 Correct 2 ms 504 KB Output is correct
8 Correct 3 ms 764 KB Output is correct
9 Correct 2 ms 380 KB Output is correct
10 Correct 4 ms 2424 KB Output is correct
11 Correct 4 ms 2552 KB Output is correct
12 Correct 4 ms 2552 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 4 ms 2296 KB Output is correct
15 Correct 4 ms 2296 KB Output is correct
16 Correct 4 ms 2552 KB Output is correct
17 Correct 3 ms 1272 KB Output is correct
18 Correct 3 ms 1784 KB Output is correct
19 Correct 3 ms 2044 KB Output is correct
20 Correct 4 ms 2424 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 504 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 3 ms 760 KB Output is correct
6 Correct 2 ms 504 KB Output is correct
7 Correct 2 ms 504 KB Output is correct
8 Correct 3 ms 764 KB Output is correct
9 Correct 2 ms 380 KB Output is correct
10 Correct 4 ms 2424 KB Output is correct
11 Correct 4 ms 2552 KB Output is correct
12 Correct 4 ms 2552 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 4 ms 2296 KB Output is correct
15 Correct 4 ms 2296 KB Output is correct
16 Correct 4 ms 2552 KB Output is correct
17 Correct 3 ms 1272 KB Output is correct
18 Correct 3 ms 1784 KB Output is correct
19 Correct 3 ms 2044 KB Output is correct
20 Correct 4 ms 2424 KB Output is correct
21 Incorrect 33 ms 9716 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 504 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 3 ms 760 KB Output is correct
6 Correct 2 ms 504 KB Output is correct
7 Correct 2 ms 504 KB Output is correct
8 Correct 3 ms 764 KB Output is correct
9 Correct 2 ms 380 KB Output is correct
10 Correct 4 ms 2424 KB Output is correct
11 Correct 4 ms 2552 KB Output is correct
12 Correct 4 ms 2552 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 4 ms 2296 KB Output is correct
15 Correct 4 ms 2296 KB Output is correct
16 Correct 4 ms 2552 KB Output is correct
17 Correct 3 ms 1272 KB Output is correct
18 Correct 3 ms 1784 KB Output is correct
19 Correct 3 ms 2044 KB Output is correct
20 Correct 4 ms 2424 KB Output is correct
21 Incorrect 33 ms 9716 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 504 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 3 ms 760 KB Output is correct
6 Correct 2 ms 504 KB Output is correct
7 Correct 2 ms 504 KB Output is correct
8 Correct 3 ms 764 KB Output is correct
9 Correct 2 ms 380 KB Output is correct
10 Correct 4 ms 2424 KB Output is correct
11 Correct 4 ms 2552 KB Output is correct
12 Correct 4 ms 2552 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 4 ms 2296 KB Output is correct
15 Correct 4 ms 2296 KB Output is correct
16 Correct 4 ms 2552 KB Output is correct
17 Correct 3 ms 1272 KB Output is correct
18 Correct 3 ms 1784 KB Output is correct
19 Correct 3 ms 2044 KB Output is correct
20 Correct 4 ms 2424 KB Output is correct
21 Incorrect 33 ms 9716 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 504 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 3 ms 760 KB Output is correct
6 Correct 2 ms 504 KB Output is correct
7 Correct 2 ms 504 KB Output is correct
8 Correct 3 ms 764 KB Output is correct
9 Correct 2 ms 380 KB Output is correct
10 Correct 4 ms 2424 KB Output is correct
11 Correct 4 ms 2552 KB Output is correct
12 Correct 4 ms 2552 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 4 ms 2296 KB Output is correct
15 Correct 4 ms 2296 KB Output is correct
16 Correct 4 ms 2552 KB Output is correct
17 Correct 3 ms 1272 KB Output is correct
18 Correct 3 ms 1784 KB Output is correct
19 Correct 3 ms 2044 KB Output is correct
20 Correct 4 ms 2424 KB Output is correct
21 Incorrect 33 ms 9716 KB Output isn't correct
22 Halted 0 ms 0 KB -