Submission #1253904

#	Time	Username	Problem	Language	Result	Execution time	Memory
1253904		chr34	Festival (IOI25_festival)	C++20	0 / 100	1097 ms	3400 KiB

festival

#include <bits/stdc++.h>

using namespace std;

//#define int long long
#define endl "\n"
#define dbg(x) cout << #x << " = " << (x) << endl;
//const int INF = 1e18;
const int MAXN = 1e6 + 10;
const int MOD = 1e9 + 7;

int best_count = 0;
vector<int> best_path;

void dfs(int tokens, vector<bool>& used, const vector<int>& P, const vector<int>& T, vector<int>& path) {
    bool progressed = false;
    int N = P.size();

    for (int i = 0; i < N; ++i) {
        if (!used[i] && tokens >= P[i]) {
            int new_tokens = (tokens - P[i]) * T[i];
            used[i] = true;
            path.push_back(i);
            dfs(new_tokens, used, P, T, path);
            path.pop_back();
            used[i] = false;
            progressed = true;
        }
    }

    if (!progressed) {
        if ((int)path.size() > best_count) {
            best_count = path.size();
            best_path = path;
        }
    }
}

vector<int> max_coupons(int A, std::vector<int> P, std::vector<int> T) {
    int N = P.size();
    best_count = 0;
    best_path.clear();
    vector<bool> used(N, false);
    vector<int> path;
    dfs(A, used, P, T, path);
    return best_path;
}

/*int32_t main(){
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	//freopen("input.in", "r", stdin);
	//freopen("input.out", "w", stdout);    
	vector<int> ans = max_coupons(13, {4, 500, 8, 14}, {1, 1, 1, 1});
	for(auto x : ans) cout<<x<<endl;	
    return 0;
}*/

• Subtask 0: 0 / 0
• Subtask 1: 0 / 5
• Subtask 2: 0 / 7
• Subtask 3: 0 / 12
• Subtask 4: 0 / 15
• Subtask 5: 0 / 27
• Subtask 6: 0 / 16
• Subtask 7: 0 / 18