Submission #941151

#	Time	Username	Problem	Language	Result	Execution time	Memory
941151		PenguinsAreCute	Semiexpress (JOI17_semiexpress)	C++17	100 / 100	12 ms	6092 KiB

semiexpress

#include <bits/stdc++.h>
using namespace std;
#define int long long
main() {
	int n, m, k, a, b, c, t; cin >> n >> m >> k >> a >> b >> c >> t;
	int s[m+1]; for(int i=0;i<m;i++) {cin>>s[i]; s[i]--;}
	s[m] = s[m-1] + 1;
	vector<int> v;
	int ans = -1;
	for(int i=0;i<m;i++) {
		int cur = s[i];
		for(int cnt=0;cnt<=k-m && cur<s[i+1];cnt++) {
			int nxt = (cur * (a-c) + s[i] * (c-b) + t) / a + 1;
			// (7 * 5 + 5 * 2 + 25)/10
			// 7 * 5 + 5 * 2 = 45
			if(nxt <= cur) break;
			nxt = min(nxt, s[i+1]);
			if(cur == s[i]) ans += (nxt - cur);
			else v.push_back(nxt-cur);
			cur = nxt;
		}
	}
	sort(v.begin(),v.end());
	for(int i=1;i<=min((int)(v.size()),k-m);i++) ans += end(v)[-i];
	cout << ans;
}

Compilation message (stderr)

semiexpress.cpp:4:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    4 | main() {
      | ^~~~

• Subtask 1: 18 / 18
• Subtask 2: 30 / 30
• Subtask 3: 52 / 52