Submission #1116824

#	Time	Username	Problem	Language	Result	Execution time	Memory
1116824		Pekiban	Long Distance Coach (JOI17_coach)	C++17	0 / 100	1 ms	336 KiB

coach

#include <bits/stdc++.h>

using namespace std;
using ll = long long;
// n, m <= 2000
int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    ll x, n, m, w, t;
    cin >> x >> n >> m >> w >> t;
    ll s[n+2], ans = (x + t) / t * w;
    array<ll, 2> a[m+1];
    for (int i = 1; i <= n; ++i)    cin >> s[i];
    s[n+1] = x;
    sort(s+1, s+n+1);
    for (int i = 1; i <= m; ++i) {
        cin >> a[i][0] >> a[i][1];
        ans += (x - a[i][0] + t) / t * w;
    }
    sort(a+1, a+m+1);
    for (int i = 1; i <= n+1; ++i) {
        int p = 0;
        for (int j = 1; j <= m; ++j) {
            if (a[j][0] < s[i] % t) p = j;
        }
        array<ll, 2> op = {0, p+1};
        __int128 S = 0;
        for (int j = p; j >= 1; --j) {
            if (!a[j][0])   continue;
            S += a[j][1];
            S -= (x - (s[i] / t * t) - a[j][0] + t) / t * w;
            op = min({S, j}, op);
        }
        ans += op[0];
        for (int j = p; j >= op[1]; --j)    a[j][0] = 0;
    }
    cout << ans << '\n';
}

Compilation message (stderr)

coach.cpp: In function 'int main()':
coach.cpp:32:23: warning: narrowing conversion of 'S' from '__int128' to 'long long int' [-Wnarrowing]
   32 |             op = min({S, j}, op);
      |                       ^

• Subtask 1: 0 / 16
• Subtask 2: 0 / 30
• Subtask 3: 0 / 25
• Subtask 4: 0 / 29