이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <bits/stdc++.h>
#define int long long
#define All(x) x.begin(), x.end()
#define tiiii tuple<int,int,int,int>
#define pii pair<int,int>
#define ff first
#define ss second
using namespace std;
#define debug(args...) kout("[ " + string(#args) + " ]", args)
void kout() { cerr << endl; }
template <class T, class ...U> void kout(T a, U ...b) { cerr << a << ' ',kout(b...); }
template <class T> void pary(T L, T R) { while (L != R) cerr << *L << " \n"[++L==R]; }
const int MAXN = 200000;
int N, M;
pii arr[MAXN+1];
int ans;
void solve() {
priority_queue <int, vector<int>, greater<int>> val;
for (int i = 1; i <= N; i++) {
int sum = arr[i].ff + arr[i].ss * 2;
for (int j = i+1; j <= N; j++) {
sum += arr[j].ff;
val.push(arr[j].ff);
if (val.size() + 1 > M) {
sum -= val.top();
val.pop();
}
ans = max(ans, sum - 2 * arr[j].ss);
}
while (val.size()) val.pop();
}
}
signed main() {
ios_base::sync_with_stdio(0), cin.tie(0);
cin >> N >> M;
for (int i = 1; i <= N; i++) {
auto &[v, c] = arr[i];
cin >> v >> c;
}
sort(arr+1, arr+1+N, [](const pii a, const pii b) {
return a.ss < b.ss;
});
solve();
cout << ans << '\n';
}
컴파일 시 표준 에러 (stderr) 메시지
cake3.cpp: In function 'void solve()':
cake3.cpp:26:23: warning: comparison of integer expressions of different signedness: 'std::priority_queue<long long int, std::vector<long long int>, std::greater<long long int> >::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
26 | if (val.size() + 1 > M) {
| ~~~~~~~~~~~~~~~^~~
cake3.cpp: In function 'int main()':
cake3.cpp:40:9: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
40 | auto &[v, c] = arr[i];
| ^
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