oj.uz

Submission #337534

# Submission time Handle Problem Language Result Execution time Memory
337534 2020-12-21T04:16:47 Z boykut Divide and conquer (IZhO14_divide) C++14
100 / 100
 43 ms 7936 KB 
#include <bits/stdc++.h>

using namespace std;

#define int long long
#define MAXN 100100

int x[MAXN], g[MAXN], d[MAXN], n;
int prg[MAXN], prd[MAXN], mn[MAXN];
int ans;

int search(int i, int E) {
   int l = 1, r = i, pos = 1;
   while (l <= r) {
      int m = (l + r) / 2;
      if (mn[m] <= E) {
         r = m - 1;
         pos = m;
      } else {
         l = m + 1;
      }
   }
   return pos;
}

signed main() {
   ios::sync_with_stdio(0);
   cin.tie(0);
   
   cin >> n;
   
   for (int i = 1; i <= n; i++) {
      cin >> x[i] >> g[i] >> d[i];
   }
   
   mn[0] = 1e18;
   for (int i = 1; i <= n; i++) {
      prg[i] = g[i];
      prd[i] = d[i];
      prg[i] += prg[i - 1],
      prd[i] += prd[i - 1];
      mn[i] = min(mn[i - 1], prd[i - 1] - x[i]);
      
      int left = search(i, prd[i] - x[i]);
      ans = max(ans, prg[i] - prg[left - 1]);
   }
   
   cout << ans << '\n';
   
   return 0;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 492 KB Output is correct
18 Correct 1 ms 492 KB Output is correct
19 Correct 1 ms 492 KB Output is correct
20 Correct 1 ms 492 KB Output is correct
21 Correct 1 ms 492 KB Output is correct
22 Correct 1 ms 492 KB Output is correct
23 Correct 2 ms 748 KB Output is correct
24 Correct 2 ms 748 KB Output is correct

Subtask #3
52.0 / 52.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 492 KB Output is correct
18 Correct 1 ms 492 KB Output is correct
19 Correct 1 ms 492 KB Output is correct
20 Correct 1 ms 492 KB Output is correct
21 Correct 1 ms 492 KB Output is correct
22 Correct 1 ms 492 KB Output is correct
23 Correct 2 ms 748 KB Output is correct
24 Correct 2 ms 748 KB Output is correct
25 Correct 2 ms 620 KB Output is correct
26 Correct 3 ms 1004 KB Output is correct
27 Correct 5 ms 1004 KB Output is correct
28 Correct 17 ms 3692 KB Output is correct
29 Correct 22 ms 4076 KB Output is correct
30 Correct 43 ms 7936 KB Output is correct
31 Correct 33 ms 6764 KB Output is correct
32 Correct 33 ms 6892 KB Output is correct
33 Correct 34 ms 6636 KB Output is correct
34 Correct 32 ms 6636 KB Output is correct
35 Correct 34 ms 7148 KB Output is correct
36 Correct 36 ms 7404 KB Output is correct