oj.uz

Submission #525952

# Submission time Handle Problem Language Result Execution time Memory
525952 2022-02-13T09:49:20 Z Dilshod_Imomov Divide and conquer (IZhO14_divide) C++17
48 / 100
 1000 ms 7544 KB 
# include <bits/stdc++.h>
# define speed ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0)
# define int long long
# define fi first
# define se second
 
using namespace std;
 
const int N = 1e5 + 7;
const int mod = 1e9 + 7;
// const int INF = 1e18;
 
int x[N], g[N], d[N], t[4 * N];

void build( int v, int l, int r ) {
   if ( l == r ) {
      t[v] = l;
      return;
   }
   int m = (l + r) / 2;
   build( v * 2, l, m );
   build( v * 2 + 1, m + 1, r );
   int i = t[v * 2], j = t[v * 2 + 1];
   if ( x[ i ] - d[ i - 1 ] >= x[j] - d[j - 1] ) {
      t[v] = i;
   }
   else {
      t[v] = j;
   }
}

int get( int v, int l, int r, int tl, int tr, int val ) {
   if ( tl > tr ) {
      return -1;
   }
   if ( l == tl && tr == r ) {
      return t[v];
   }
   int m = (l + r) / 2;
   int i = get( v * 2, l, m, tl, min( tr, m ), val );
   int j = get( v * 2 + 1, m + 1, r, max( tl, m + 1 ), tr, val );
   if ( i != -1 && x[i] - d[i - 1] >= val ) {
      return i;
   }
   return j;
}
 
int32_t main() {
   speed;
   int n;
   cin >> n;
   for ( int i = 1; i <= n; i++ ) {
      cin >> x[i] >> g[i] >> d[i];
      d[i] += d[i - 1];
      g[i] += g[i - 1];
   }
   build( 1, 1, n );
   // cout << "done" << endl;
   int mx = 0;
   for ( int i = 1; i <= n; i++ ) {
      /*
      int j = get( 1, 1, n, 1, i - 1, x[i] - d[i] );
      // cout << i << " " << j << endl;
      if ( j != -1 && x[i] - x[j] <= d[i] - d[j - 1] ) {
         mx = max( mx, g[i] - g[j - 1] );
      }
      mx = max( mx, g[i] - g[i - 1] );
      */
      for ( int j = 0; j < i; j++ ) {
         if ( x[i] - d[i] <= x[j] - d[j - 1] ) {
            mx = max( mx, g[i] - g[j - 1] );
            break;
         }
      }
      mx = max( mx, g[i] - g[i - 1] );
   }
   cout << mx;
}
/*
4
0 5 1
1 7 2
4 4 1
7 15 1
*/

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 2 ms 332 KB Output is correct
22 Correct 2 ms 332 KB Output is correct
23 Correct 8 ms 588 KB Output is correct
24 Correct 9 ms 580 KB Output is correct

Subtask #3
0 / 52.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 2 ms 332 KB Output is correct
22 Correct 2 ms 332 KB Output is correct
23 Correct 8 ms 588 KB Output is correct
24 Correct 9 ms 580 KB Output is correct
25 Correct 1 ms 460 KB Output is correct
26 Correct 2 ms 716 KB Output is correct
27 Correct 3 ms 708 KB Output is correct
28 Correct 14 ms 2504 KB Output is correct
29 Correct 16 ms 3764 KB Output is correct
30 Correct 30 ms 7544 KB Output is correct
31 Correct 26 ms 6408 KB Output is correct
32 Correct 25 ms 6464 KB Output is correct
33 Correct 24 ms 6336 KB Output is correct
34 Execution timed out 1049 ms 6268 KB Time limit exceeded
35 Halted 0 ms 0 KB -