oj.uz

Submission #929086

# Submission time Handle Problem Language Result Execution time Memory
929086 2024-02-17T16:35:14 Z OAleksa Horses (IOI15_horses) C++14
34 / 100
 1500 ms 13916 KB 
#include "horses.h"
#include <bits/stdc++.h>
using namespace std;
const int mod = 1e9 + 7;
const int inf = 1e9 + 69;
const int N = 5e5 + 69;
int n, a[N], b[N], c[N];
int mul(int a, int b) {
   long long r = 1ll * a * b;
   if (r >= mod)
      r %= mod;
   return r;
}
int Solve() {
   /*
   int ptr = n - 1, s = a[n - 1];
   c[n - 1] = n - 1;
   for (int i = n - 2;i >= 0;i--) {
      if (a[i] > inf / s) {
         while (a[i] > inf / s) {
            s /= a[ptr];
            ptr--;
         }
         c[i] = ptr;
      }
      else {
         c[i] = c[i + 1];
         s *= a[i];
      }
   }*/
   long long ans = 1, x = a[0];
   int bst = 0;
   for (int i = 1;i < n;i++) {
      if (x > inf / a[i]) {
         x = 1;
         bst = i;
      }
      else {
         x *= a[i];
         if (b[i] > b[bst] / x) {
            x = 1;
            bst = i;
         }
      }
   }
   for (int i = 0;i <= bst;i++)
      ans = mul(ans, a[i]);
   return mul(ans, b[bst]);
}
int init(int N, int X[], int Y[]) {
   n = N;
   for (int i = 0;i < n;i++)
      a[i] = X[i], b[i] = Y[i];
   return Solve();
}

int updateX(int pos, int val) {
   a[pos] = val;
	return Solve();
}

int updateY(int pos, int val) {
	b[pos] = val;
	return Solve();
}
/*
3
2 1 3
3 4 1
1
2 1 2

*/

Compilation message

horses.cpp: In function 'int mul(int, int)':
horses.cpp:8:20: warning: declaration of 'b' shadows a global declaration [-Wshadow]
    8 | int mul(int a, int b) {
      |                ~~~~^
horses.cpp:7:14: note: shadowed declaration is here
    7 | int n, a[N], b[N], c[N];
      |              ^
horses.cpp:8:13: warning: declaration of 'a' shadows a global declaration [-Wshadow]
    8 | int mul(int a, int b) {
      |         ~~~~^
horses.cpp:7:8: note: shadowed declaration is here
    7 | int n, a[N], b[N], c[N];
      |        ^
horses.cpp:12:11: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   12 |    return r;
      |           ^
horses.cpp: In function 'int Solve()':
horses.cpp:47:17: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   47 |       ans = mul(ans, a[i]);
      |                 ^~~
horses.cpp:48:15: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   48 |    return mul(ans, b[bst]);
      |               ^~~
horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:50:14: warning: declaration of 'N' shadows a global declaration [-Wshadow]
   50 | int init(int N, int X[], int Y[]) {
      |          ~~~~^
horses.cpp:6:11: note: shadowed declaration is here
    6 | const int N = 5e5 + 69;
      |           ^

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4440 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4544 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 1 ms 4696 KB Output is correct
19 Correct 1 ms 4440 KB Output is correct
20 Correct 1 ms 4440 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4440 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4544 KB Output is correct
14 Correct 1 ms 4440 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 1 ms 4696 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 17 ms 4588 KB Output is correct
24 Correct 17 ms 4588 KB Output is correct
25 Correct 14 ms 4440 KB Output is correct
26 Correct 14 ms 4440 KB Output is correct
27 Correct 18 ms 4444 KB Output is correct
28 Correct 18 ms 4580 KB Output is correct
29 Correct 15 ms 4444 KB Output is correct
30 Correct 15 ms 4444 KB Output is correct
31 Correct 17 ms 4444 KB Output is correct
32 Correct 19 ms 4444 KB Output is correct

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1561 ms 9820 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4440 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4440 KB Output is correct
10 Correct 1 ms 4440 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4504 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 17 ms 4580 KB Output is correct
24 Correct 17 ms 4444 KB Output is correct
25 Correct 14 ms 4444 KB Output is correct
26 Correct 14 ms 4592 KB Output is correct
27 Correct 18 ms 4444 KB Output is correct
28 Correct 18 ms 4444 KB Output is correct
29 Correct 14 ms 4444 KB Output is correct
30 Correct 14 ms 4444 KB Output is correct
31 Correct 18 ms 4584 KB Output is correct
32 Correct 18 ms 4444 KB Output is correct
33 Execution timed out 1541 ms 13916 KB Time limit exceeded
34 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4696 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 1 ms 4440 KB Output is correct
23 Correct 17 ms 4440 KB Output is correct
24 Correct 17 ms 4440 KB Output is correct
25 Correct 14 ms 4444 KB Output is correct
26 Correct 14 ms 4584 KB Output is correct
27 Correct 18 ms 4444 KB Output is correct
28 Correct 18 ms 4572 KB Output is correct
29 Correct 14 ms 4444 KB Output is correct
30 Correct 14 ms 4444 KB Output is correct
31 Correct 18 ms 4560 KB Output is correct
32 Correct 20 ms 4444 KB Output is correct
33 Execution timed out 1577 ms 12236 KB Time limit exceeded
34 Halted 0 ms 0 KB -