oj.uz

Submission #593207

# Submission time Handle Problem Language Result Execution time Memory
593207 2022-07-10T15:02:59 Z OttoTheDino Sightseeing in Kyoto (JOI22_kyoto) C++17
30 / 100
 18 ms 2004 KB 
//one of the coolest problems i've ever seen
#include <bits/stdc++.h>
using namespace std;

#define rep(i,s,e)                  for (ll i = s; i <= e; ++i)
#define pb(u)                       push_back(u)
#define len(a)                      (int)a.size()
typedef long long ll;

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);

    ll h, w, x = 0; cin >> h >> w;
    ll a[h+1], b[w+1];
    rep (i,1,h) cin >> a[i];
    rep (i,1,w) cin >> b[i];
    vector<ll> ha, hb;
    ha.pb(1), hb.pb(1);
    rep (i,2,h) {
        while (true) {
            ll n = len(ha);
            if (n==1 || ((a[ha[n-1]]-a[ha[n-2]])*(i-ha[n-1])<(a[i]-a[ha[n-1]])*(ha[n-1]-ha[n-2]))) break;
            ha.pop_back();
        }
        ha.pb(i);
    }
    rep (i,2,w) {
        while (true) {
            ll n = len(hb);
            if (n==1 || ((b[hb[n-1]]-b[hb[n-2]])*(i-hb[n-1])<(b[i]-b[hb[n-1]])*(hb[n-1]-hb[n-2]))) break;
            hb.pop_back();
        }
        hb.pb(i);
    }
    while (true) {
        ll n = len(ha), m = len(hb);
        if (max(n,m)<2) break;
        if (m==1 || ((a[ha[n-1]]-a[ha[n-2]])*(hb[m-1]-hb[m-2])>(b[hb[m-1]]-b[hb[m-2]])*(ha[n-1]-ha[n-2]))) {
            x += b[hb[m-1]] * (ha[n-1]-ha[n-2]);
            ha.pop_back();
        }
        else {
            x += a[ha[n-1]] * (hb[m-1]-hb[m-2]);
            hb.pop_back();
        }
    }
    cout << x << "\n";

    return 0;
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Runtime error 1 ms 340 KB Execution killed with signal 11
4 Halted 0 ms 0 KB -

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 7 ms 956 KB Output is correct
5 Correct 5 ms 908 KB Output is correct
6 Correct 3 ms 468 KB Output is correct
7 Correct 14 ms 1884 KB Output is correct
8 Correct 14 ms 1884 KB Output is correct
9 Correct 14 ms 1876 KB Output is correct
10 Correct 18 ms 1880 KB Output is correct
11 Correct 13 ms 1884 KB Output is correct
12 Correct 14 ms 1884 KB Output is correct
13 Correct 16 ms 2004 KB Output is correct
14 Correct 12 ms 1876 KB Output is correct
15 Correct 13 ms 1880 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct

Subtask #3
0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Runtime error 1 ms 340 KB Execution killed with signal 11
4 Halted 0 ms 0 KB -