oj.uz

Submission #167620

# Submission time Handle Problem Language Result Execution time Memory
167620 2019-12-09T06:21:59 Z Rakhmand Bootfall (IZhO17_bootfall) C++14
13 / 100
 135 ms 21240 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[2000000], num[1000000], 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){
                ok = 0;
                break;
            }
            if(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:125:22: 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 888 KB Output is correct
9 Correct 2 ms 376 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 888 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 4 ms 2428 KB Output is correct
11 Correct 4 ms 2552 KB Output is correct
12 Correct 4 ms 2424 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 2300 KB Output is correct
16 Correct 4 ms 2552 KB Output is correct
17 Correct 3 ms 1192 KB Output is correct
18 Correct 3 ms 1784 KB Output is correct
19 Correct 4 ms 1912 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 888 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 4 ms 2428 KB Output is correct
11 Correct 4 ms 2552 KB Output is correct
12 Correct 4 ms 2424 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 2300 KB Output is correct
16 Correct 4 ms 2552 KB Output is correct
17 Correct 3 ms 1192 KB Output is correct
18 Correct 3 ms 1784 KB Output is correct
19 Correct 4 ms 1912 KB Output is correct
20 Correct 4 ms 2424 KB Output is correct
21 Correct 33 ms 9720 KB Output is correct
22 Correct 47 ms 12920 KB Output is correct
23 Correct 18 ms 6392 KB Output is correct
24 Correct 93 ms 20368 KB Output is correct
25 Incorrect 135 ms 21240 KB Output isn't correct
26 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 888 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 4 ms 2428 KB Output is correct
11 Correct 4 ms 2552 KB Output is correct
12 Correct 4 ms 2424 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 2300 KB Output is correct
16 Correct 4 ms 2552 KB Output is correct
17 Correct 3 ms 1192 KB Output is correct
18 Correct 3 ms 1784 KB Output is correct
19 Correct 4 ms 1912 KB Output is correct
20 Correct 4 ms 2424 KB Output is correct
21 Correct 33 ms 9720 KB Output is correct
22 Correct 47 ms 12920 KB Output is correct
23 Correct 18 ms 6392 KB Output is correct
24 Correct 93 ms 20368 KB Output is correct
25 Incorrect 135 ms 21240 KB Output isn't correct
26 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 888 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 4 ms 2428 KB Output is correct
11 Correct 4 ms 2552 KB Output is correct
12 Correct 4 ms 2424 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 2300 KB Output is correct
16 Correct 4 ms 2552 KB Output is correct
17 Correct 3 ms 1192 KB Output is correct
18 Correct 3 ms 1784 KB Output is correct
19 Correct 4 ms 1912 KB Output is correct
20 Correct 4 ms 2424 KB Output is correct
21 Correct 33 ms 9720 KB Output is correct
22 Correct 47 ms 12920 KB Output is correct
23 Correct 18 ms 6392 KB Output is correct
24 Correct 93 ms 20368 KB Output is correct
25 Incorrect 135 ms 21240 KB Output isn't correct
26 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 888 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 4 ms 2428 KB Output is correct
11 Correct 4 ms 2552 KB Output is correct
12 Correct 4 ms 2424 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 2300 KB Output is correct
16 Correct 4 ms 2552 KB Output is correct
17 Correct 3 ms 1192 KB Output is correct
18 Correct 3 ms 1784 KB Output is correct
19 Correct 4 ms 1912 KB Output is correct
20 Correct 4 ms 2424 KB Output is correct
21 Correct 33 ms 9720 KB Output is correct
22 Correct 47 ms 12920 KB Output is correct
23 Correct 18 ms 6392 KB Output is correct
24 Correct 93 ms 20368 KB Output is correct
25 Incorrect 135 ms 21240 KB Output isn't correct
26 Halted 0 ms 0 KB -