oj.uz

Submission #386649

# Submission time Handle Problem Language Result Execution time Memory
386649 2021-04-07T07:01:17 Z kingline Bootfall (IZhO17_bootfall) C++17
13 / 100
 1000 ms 492 KB 
/*#pragma GCC optimize ("Ofast")
#pragma GCC optimize ("unroll-loops")
#pragma GCC target("avx,avx2,fma")*/
#include <iostream>
#include <stdio.h>
#include <algorithm>
#include <cstdio>
#include <cstdlib>
#include <iomanip>
#include <cmath>
#include <vector>
#include <string>
#include <stack>
#include <map>
#include <set>
#include <queue>
#define pb push_back
#define F first
#define mp make_pair
#define S second
#define pii pair <int, int >
#define pll pair <long long, long long >
#define ios ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define all(data) data.begin() , data.end()
#define endl '\n'
#define bo cout << "OK" << endl;
#define file(data) freopen(data".in", "r", stdin); freopen(data".out", "w", stdout);
//freopen("nenokku_easy.in", "r", stdin);
//freopen("nenokku_easy.out", "w", stdout);
#define int long long

using namespace std;

typedef long double ld;
typedef long long ll;
typedef unsigned long long ull;

const ll N = 1e6 + 5;
const ll mod = 1e9 + 7;
const ll INF = 1e10;
const ll M = (1 << 17) + 5;
const ll LL = 1;
const ll p = 31;
bool ok;

ll q, n, m, k, a[N];
int dp[500 * 500], sum, mn = 501;
string s, s1, s2;

bool check2(vector < int > &v, int ign) {
    int sum1 = sum;
    sum += a[ign];
    if(sum1 % 2 == 0) {
        sum1 /= 2;
        for(int i = 0; i <= sum1; i++) {
            dp[i] = 0;
        }
        dp[0] = 1;
        for (int i = 0; i < v.size(); ++i) {
            if(i == ign) continue;
            for (int j = sum1; j >= 0; --j) {
                if (dp[j] == 1 && j + v[i] <= sum1) {
                    dp[j + v[i]] = 1;
                }
            }
        }/*
        cout << "Sum: " << sum1 * 2 << "\n";

        for (int i = 0; i < v.size(); ++i) {
            cout << v[i] << " ";
        }
        cout << " --> " << dp[sum1] << "\n";*/
        if (dp[sum1] == 1)
            return 1;
    }
    return 0;
}

vector < int > v;

bool check() {
    //a[0] = v[0] = val;
    //cout << "Val: " << val << "\n";
    for(int i = 0; i <= n; i++) {
        /*for(int j = 0; j <= n; j++) {
            if(i != j) {
                v.pb(a[j]);
                //cout << a[j] << " ";
            }
        }*/
        //cout << endl;
        sum -= a[i];
        if(!check2(v, i)) return 0;
    }
    return 1;
}

main()
{
    //file("B");
    ios;
    cin >> n;
    v.pb(0);
    for(int i = 1; i <= n; i++) {
        cin >> a[i];
        mn = min(mn, a[i]);
        sum += a[i];
        v.pb(a[i]);
    }
    //sort(a + 1, a + n + 1);
    vector < int > ans;
    int right = sum - mn;
    for(int tmp = 1; tmp <= right; tmp++) {
        sum -= a[0];
        v[0] = a[0] = tmp;
        sum += a[0];
        //cout << sum << endl;
        if(check()) {
            ans.pb(tmp);
        }
    }
    cout << ans.size() << endl;
    for(int i = 0; i < ans.size(); i++) {
        cout << ans[i] << " ";
    }
}

Compilation message

bootfall.cpp: In function 'bool check2(std::vector<long long int>&, long long int)':
bootfall.cpp:59:27: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |         for (int i = 0; i < v.size(); ++i) {
      |                         ~~^~~~~~~~~~
bootfall.cpp: At global scope:
bootfall.cpp:98:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   98 | main()
      |      ^
bootfall.cpp: In function 'int main()':
bootfall.cpp:123:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  123 |     for(int i = 0; i < ans.size(); i++) {
      |                    ~~^~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 3 ms 364 KB Output is correct
5 Correct 46 ms 364 KB Output is correct
6 Correct 2 ms 364 KB Output is correct
7 Correct 2 ms 364 KB Output is correct
8 Correct 82 ms 364 KB Output is correct
9 Correct 6 ms 364 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 3 ms 364 KB Output is correct
5 Correct 46 ms 364 KB Output is correct
6 Correct 2 ms 364 KB Output is correct
7 Correct 2 ms 364 KB Output is correct
8 Correct 82 ms 364 KB Output is correct
9 Correct 6 ms 364 KB Output is correct
10 Correct 19 ms 364 KB Output is correct
11 Correct 57 ms 412 KB Output is correct
12 Correct 9 ms 492 KB Output is correct
13 Correct 6 ms 364 KB Output is correct
14 Correct 61 ms 364 KB Output is correct
15 Correct 35 ms 364 KB Output is correct
16 Correct 52 ms 364 KB Output is correct
17 Correct 11 ms 364 KB Output is correct
18 Correct 34 ms 364 KB Output is correct
19 Correct 27 ms 364 KB Output is correct
20 Correct 19 ms 364 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 3 ms 364 KB Output is correct
5 Correct 46 ms 364 KB Output is correct
6 Correct 2 ms 364 KB Output is correct
7 Correct 2 ms 364 KB Output is correct
8 Correct 82 ms 364 KB Output is correct
9 Correct 6 ms 364 KB Output is correct
10 Correct 19 ms 364 KB Output is correct
11 Correct 57 ms 412 KB Output is correct
12 Correct 9 ms 492 KB Output is correct
13 Correct 6 ms 364 KB Output is correct
14 Correct 61 ms 364 KB Output is correct
15 Correct 35 ms 364 KB Output is correct
16 Correct 52 ms 364 KB Output is correct
17 Correct 11 ms 364 KB Output is correct
18 Correct 34 ms 364 KB Output is correct
19 Correct 27 ms 364 KB Output is correct
20 Correct 19 ms 364 KB Output is correct
21 Execution timed out 1083 ms 364 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 3 ms 364 KB Output is correct
5 Correct 46 ms 364 KB Output is correct
6 Correct 2 ms 364 KB Output is correct
7 Correct 2 ms 364 KB Output is correct
8 Correct 82 ms 364 KB Output is correct
9 Correct 6 ms 364 KB Output is correct
10 Correct 19 ms 364 KB Output is correct
11 Correct 57 ms 412 KB Output is correct
12 Correct 9 ms 492 KB Output is correct
13 Correct 6 ms 364 KB Output is correct
14 Correct 61 ms 364 KB Output is correct
15 Correct 35 ms 364 KB Output is correct
16 Correct 52 ms 364 KB Output is correct
17 Correct 11 ms 364 KB Output is correct
18 Correct 34 ms 364 KB Output is correct
19 Correct 27 ms 364 KB Output is correct
20 Correct 19 ms 364 KB Output is correct
21 Execution timed out 1083 ms 364 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 3 ms 364 KB Output is correct
5 Correct 46 ms 364 KB Output is correct
6 Correct 2 ms 364 KB Output is correct
7 Correct 2 ms 364 KB Output is correct
8 Correct 82 ms 364 KB Output is correct
9 Correct 6 ms 364 KB Output is correct
10 Correct 19 ms 364 KB Output is correct
11 Correct 57 ms 412 KB Output is correct
12 Correct 9 ms 492 KB Output is correct
13 Correct 6 ms 364 KB Output is correct
14 Correct 61 ms 364 KB Output is correct
15 Correct 35 ms 364 KB Output is correct
16 Correct 52 ms 364 KB Output is correct
17 Correct 11 ms 364 KB Output is correct
18 Correct 34 ms 364 KB Output is correct
19 Correct 27 ms 364 KB Output is correct
20 Correct 19 ms 364 KB Output is correct
21 Execution timed out 1083 ms 364 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 3 ms 364 KB Output is correct
5 Correct 46 ms 364 KB Output is correct
6 Correct 2 ms 364 KB Output is correct
7 Correct 2 ms 364 KB Output is correct
8 Correct 82 ms 364 KB Output is correct
9 Correct 6 ms 364 KB Output is correct
10 Correct 19 ms 364 KB Output is correct
11 Correct 57 ms 412 KB Output is correct
12 Correct 9 ms 492 KB Output is correct
13 Correct 6 ms 364 KB Output is correct
14 Correct 61 ms 364 KB Output is correct
15 Correct 35 ms 364 KB Output is correct
16 Correct 52 ms 364 KB Output is correct
17 Correct 11 ms 364 KB Output is correct
18 Correct 34 ms 364 KB Output is correct
19 Correct 27 ms 364 KB Output is correct
20 Correct 19 ms 364 KB Output is correct
21 Execution timed out 1083 ms 364 KB Time limit exceeded
22 Halted 0 ms 0 KB -