Submission #956261

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
9562612024-04-01 12:29:57serifefedartarTaxis (POI13_tak)C++17
100 / 100
99 ms8696 KiB
#include <bits/stdc++.h>
using namespace std;
#define fast ios::sync_with_stdio(0);cin.tie(0);
typedef long long ll;
#define f first
#define s second
#define LOGN 20
const ll MOD = 998244353;
const ll MAXN = 1e5 + 100;
#define int long long
vector<ll> x;
signed main() {
fast
ll m, d, n;
cin >> m >> d >> n;
x = vector<ll>(n);
for (int i = 0; i < n; i++)
cin >> x[i];
sort(x.begin(), x.end());
auto it = lower_bound(x.begin(), x.end(), m - d);
if (it == x.end()) {
cout << "0\n";
return 0;
}
int goal = d - (*it - m + d) / 2;
x.erase(it);
 
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