Submission #953900

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
953900	2024-03-26 20:20:57	Dec0Dedd	A Difficult(y) Choice (BOI21_books)	C++14	100 / 100	1 ms	1108 KiB

books

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#include <bits/stdc++.h>
#include "books.h"
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
const int N = 1e5+10;
const int X = 12;
ll n, k, a, s;
bool us[N];
ll val[N];
ll ask(int x) {
    if (us[x]) return val[x];
    us[x]=true;
    return val[x]=skim(x);
}
bool check(vector<int> v) {
    ll sm=0;
    for (auto u : v) sm+=ask(u);
    return a <= sm && sm <= 2*a;
}
void solve(int _n, int _k, ll _a, int _s) {
    n=_n, k=_k, a=_a, s=_s;
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 15 / 15
• Subtask 3: 10 / 10
• Subtask 4: 15 / 15
• Subtask 5: 15 / 15
• Subtask 6: 20 / 20
• Subtask 7: 20 / 20