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답안 #386648

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
386648 2021-04-07T06:59:21 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]);
    }
    v.pb(0);
    //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:124:22: 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]
  124 |     for(int i = 0; i < ans.size(); i++) {
      |                    ~~^~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 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 44 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 70 ms 364 KB Output is correct
9 Correct 5 ms 364 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 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 44 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 70 ms 364 KB Output is correct
9 Correct 5 ms 364 KB Output is correct
10 Correct 11 ms 364 KB Output is correct
11 Correct 56 ms 492 KB Output is correct
12 Correct 8 ms 364 KB Output is correct
13 Correct 6 ms 364 KB Output is correct
14 Correct 62 ms 492 KB Output is correct
15 Correct 35 ms 492 KB Output is correct
16 Correct 50 ms 364 KB Output is correct
17 Correct 11 ms 364 KB Output is correct
18 Correct 32 ms 364 KB Output is correct
19 Correct 25 ms 364 KB Output is correct
20 Correct 12 ms 364 KB Output is correct

Subtask #3
0 / 15.0

# 결과 실행 시간 메모리 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 44 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 70 ms 364 KB Output is correct
9 Correct 5 ms 364 KB Output is correct
10 Correct 11 ms 364 KB Output is correct
11 Correct 56 ms 492 KB Output is correct
12 Correct 8 ms 364 KB Output is correct
13 Correct 6 ms 364 KB Output is correct
14 Correct 62 ms 492 KB Output is correct
15 Correct 35 ms 492 KB Output is correct
16 Correct 50 ms 364 KB Output is correct
17 Correct 11 ms 364 KB Output is correct
18 Correct 32 ms 364 KB Output is correct
19 Correct 25 ms 364 KB Output is correct
20 Correct 12 ms 364 KB Output is correct
21 Execution timed out 1094 ms 364 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# 결과 실행 시간 메모리 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 44 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 70 ms 364 KB Output is correct
9 Correct 5 ms 364 KB Output is correct
10 Correct 11 ms 364 KB Output is correct
11 Correct 56 ms 492 KB Output is correct
12 Correct 8 ms 364 KB Output is correct
13 Correct 6 ms 364 KB Output is correct
14 Correct 62 ms 492 KB Output is correct
15 Correct 35 ms 492 KB Output is correct
16 Correct 50 ms 364 KB Output is correct
17 Correct 11 ms 364 KB Output is correct
18 Correct 32 ms 364 KB Output is correct
19 Correct 25 ms 364 KB Output is correct
20 Correct 12 ms 364 KB Output is correct
21 Execution timed out 1094 ms 364 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# 결과 실행 시간 메모리 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 44 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 70 ms 364 KB Output is correct
9 Correct 5 ms 364 KB Output is correct
10 Correct 11 ms 364 KB Output is correct
11 Correct 56 ms 492 KB Output is correct
12 Correct 8 ms 364 KB Output is correct
13 Correct 6 ms 364 KB Output is correct
14 Correct 62 ms 492 KB Output is correct
15 Correct 35 ms 492 KB Output is correct
16 Correct 50 ms 364 KB Output is correct
17 Correct 11 ms 364 KB Output is correct
18 Correct 32 ms 364 KB Output is correct
19 Correct 25 ms 364 KB Output is correct
20 Correct 12 ms 364 KB Output is correct
21 Execution timed out 1094 ms 364 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# 결과 실행 시간 메모리 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 44 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 70 ms 364 KB Output is correct
9 Correct 5 ms 364 KB Output is correct
10 Correct 11 ms 364 KB Output is correct
11 Correct 56 ms 492 KB Output is correct
12 Correct 8 ms 364 KB Output is correct
13 Correct 6 ms 364 KB Output is correct
14 Correct 62 ms 492 KB Output is correct
15 Correct 35 ms 492 KB Output is correct
16 Correct 50 ms 364 KB Output is correct
17 Correct 11 ms 364 KB Output is correct
18 Correct 32 ms 364 KB Output is correct
19 Correct 25 ms 364 KB Output is correct
20 Correct 12 ms 364 KB Output is correct
21 Execution timed out 1094 ms 364 KB Time limit exceeded
22 Halted 0 ms 0 KB -