oj.uz

Submission #1039971

# Submission time Handle Problem Language Result Execution time Memory
1039971 2024-07-31T13:14:58 Z c2zi6 Horses (IOI15_horses) C++14
54 / 100
 1500 ms 65572 KB 
#define _USE_MATH_DEFINES
#include <bits/stdc++.h>
#define ff first
#define ss second
#define pb push_back
#define all(a) (a).begin(), (a).end()
#define replr(i, a, b) for (int i = int(a); i <= int(b); ++i)
#define reprl(i, a, b) for (int i = int(a); i >= int(b); --i)
#define rep(i, n) for (int i = 0; i < int(n); ++i)
#define mkp(a, b) make_pair(a, b)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> PII;
typedef vector<int> VI;
typedef vector<PII> VPI;
typedef vector<VI> VVI;
typedef vector<VVI> VVVI;
typedef vector<VPI> VVPI;
typedef pair<ll, ll> PLL;
typedef vector<ll> VL;
typedef vector<PLL> VPL;
typedef vector<VL> VVL;
typedef vector<VVL> VVVL;
typedef vector<VPL> VVPL;
template<class T> T setmax(T& a, T b) {if (a < b) return a = b; return a;}
template<class T> T setmin(T& a, T b) {if (a < b) return a; return a = b;}
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
template<typename T>
using indset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
#include "horses.h"

const ll MOD = 1e9 + 7;

struct SEGTREEPROD {
    int n;
    VL tree;
    SEGTREEPROD(){}
    SEGTREEPROD(int sz) {
        n = 1;
        while (n < sz) n *= 2;
        tree = VL(2*n);
    }
    void upd(int N, int L, int R, int i, int s) {
        if (i < L || i > R) return;
        if (L == R) {
            tree[N] = s;
            return;
        }
        int M = (L + R) / 2;
        upd(2*N+1, L, M, i, s);
        upd(2*N+2, M+1, R, i, s);
        tree[N] = tree[2*N+1] * tree[2*N+2] % MOD;
    }
    int get(int N, int L, int R, int l, int r) {
        if (l <= L && R <= r) return tree[N];
        if (R < l || L > r) return 1;
        int M = (L + R) / 2;
        return 1ll * get(2*N+1, L, M, l, r) * get(2*N+2, M+1, R, l, r) % MOD;
    }
    void upd(int i, int s) {
        upd(0, 0, n-1, i, s);
    }
    int get(int l, int r) {
        return get(0, 0, n-1, l, r);
    }
};
struct SEGTREEMAX {
    int n;
    VL tree;
    SEGTREEMAX(){}
    SEGTREEMAX(int sz) {
        n = 1;
        while (n < sz) n *= 2;
        tree = VL(2*n);
    }
    void upd(int N, int L, int R, int i, int s) {
        if (i < L || i > R) return;
        if (L == R) {
            tree[N] = s;
            return;
        }
        int M = (L + R) / 2;
        upd(2*N+1, L, M, i, s);
        upd(2*N+2, M+1, R, i, s);
        tree[N] = max(tree[2*N+1], tree[2*N+2]);
    }
    int get(int N, int L, int R, int l, int r) {
        if (l <= L && R <= r) return tree[N];
        if (R < l || L > r) return -2e9;
        int M = (L + R) / 2;
        return max(get(2*N+1, L, M, l, r), get(2*N+2, M+1, R, l, r));
    }
    void upd(int i, int s) {
        upd(0, 0, n-1, i, s);
    }
    int get(int l, int r) {
        return get(0, 0, n-1, l, r);
    }
};

int n;
VL a, b;
SEGTREEPROD sega;
SEGTREEMAX segb;
set<int> nonone;

ll recalc() {
    ll leave = n-1;
    ll prod = 1;
    reprl(i, n-1, 0) {
        /*if (a[i] == 1) continue;*/
    /*for (auto it = prev(nonone.end()); it != nonone.begin(); it--) {*/
    /*    int i = *it;*/
        /*cout << "considered " << i << endl;*/
        ll bi = segb.get(i, n-1);
        if (bi > prod) {
            prod = a[i] * bi;
            leave = i;
        } else {
            prod = a[i] * prod;
        }
        if (prod > 1e9) break;
    }
	return 1ll * sega.get(0, leave) * segb.get(leave, n-1) % MOD;
	return sega.get(0, leave) * b[leave] % MOD;
}

int init(int N, int X[], int Y[]) {
    n = N;
    a = b = VL(n);
    rep(i, n) {
        a[i] = X[i];
        b[i] = Y[i];
    }
    sega = SEGTREEPROD(n);
    rep(i, n) sega.upd(i, a[i]);
    segb = SEGTREEMAX(n);
    rep(i, n) segb.upd(i, b[i]);
    rep(i, n) if (a[i] != 1) nonone.insert(i);
    return recalc();
}

int updateX(int pos, int val) {	
    if (a[pos] != 1) nonone.erase(pos);
    a[pos] = val;
    if (a[pos] != 1) nonone.insert(pos);
    sega.upd(pos, a[pos]);
	return recalc();
}

int updateY(int pos, int val) {
    b[pos] = val;
    segb.upd(pos, b[pos]);
	return recalc();
}

Compilation message

horses.cpp: In member function 'int SEGTREEPROD::get(int, int, int, int, int)':
horses.cpp:57:44: warning: conversion from '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'} to 'int' may change value [-Wconversion]
   57 |         if (l <= L && R <= r) return tree[N];
      |                                            ^
horses.cpp:60:72: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   60 |         return 1ll * get(2*N+1, L, M, l, r) * get(2*N+2, M+1, R, l, r) % MOD;
      |                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~
horses.cpp: In member function 'int SEGTREEMAX::get(int, int, int, int, int)':
horses.cpp:90:44: warning: conversion from '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'} to 'int' may change value [-Wconversion]
   90 |         if (l <= L && R <= r) return tree[N];
      |                                            ^
horses.cpp: In function 'll recalc()':
horses.cpp:124:13: warning: conversion from 'll' {aka 'long long int'} to 'double' may change value [-Wconversion]
  124 |         if (prod > 1e9) break;
      |             ^~~~
horses.cpp:126:27: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
  126 |  return 1ll * sega.get(0, leave) * segb.get(leave, n-1) % MOD;
      |                           ^~~~~
horses.cpp:126:45: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
  126 |  return 1ll * sega.get(0, leave) * segb.get(leave, n-1) % MOD;
      |                                             ^~~~~
horses.cpp:127:21: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
  127 |  return sega.get(0, leave) * b[leave] % MOD;
      |                     ^~~~~
horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:138:31: warning: conversion from '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'} to 'int' may change value [-Wconversion]
  138 |     rep(i, n) sega.upd(i, a[i]);
      |                               ^
horses.cpp:140:31: warning: conversion from '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'} to 'int' may change value [-Wconversion]
  140 |     rep(i, n) segb.upd(i, b[i]);
      |                               ^
horses.cpp:142:18: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
  142 |     return recalc();
      |            ~~~~~~^~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:149:25: warning: conversion from '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'} to 'int' may change value [-Wconversion]
  149 |     sega.upd(pos, a[pos]);
      |                         ^
horses.cpp:150:15: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
  150 |  return recalc();
      |         ~~~~~~^~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:155:25: warning: conversion from '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'} to 'int' may change value [-Wconversion]
  155 |     segb.upd(pos, b[pos]);
      |                         ^
horses.cpp:156:15: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
  156 |  return recalc();
      |         ~~~~~~^~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 600 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 432 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 436 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 436 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 440 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 2 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 9 ms 512 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 35 ms 348 KB Output is correct
30 Correct 8 ms 348 KB Output is correct
31 Correct 33 ms 484 KB Output is correct
32 Correct 18 ms 344 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 352 ms 55564 KB Output is correct
2 Correct 314 ms 59796 KB Output is correct
3 Correct 307 ms 55136 KB Output is correct
4 Correct 310 ms 57380 KB Output is correct

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 440 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 600 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 604 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 396 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 1 ms 444 KB Output is correct
27 Correct 9 ms 348 KB Output is correct
28 Correct 1 ms 392 KB Output is correct
29 Correct 34 ms 508 KB Output is correct
30 Correct 8 ms 560 KB Output is correct
31 Correct 33 ms 348 KB Output is correct
32 Correct 19 ms 348 KB Output is correct
33 Correct 1341 ms 32528 KB Output is correct
34 Correct 118 ms 32500 KB Output is correct
35 Correct 216 ms 62804 KB Output is correct
36 Correct 236 ms 62792 KB Output is correct
37 Execution timed out 1563 ms 30668 KB Time limit exceeded
38 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 436 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 432 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 432 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 10 ms 504 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 34 ms 348 KB Output is correct
30 Correct 9 ms 348 KB Output is correct
31 Correct 33 ms 504 KB Output is correct
32 Correct 19 ms 348 KB Output is correct
33 Correct 347 ms 56660 KB Output is correct
34 Correct 299 ms 65572 KB Output is correct
35 Correct 306 ms 56916 KB Output is correct
36 Correct 310 ms 60500 KB Output is correct
37 Correct 1337 ms 32532 KB Output is correct
38 Correct 122 ms 32596 KB Output is correct
39 Correct 220 ms 62888 KB Output is correct
40 Correct 220 ms 62804 KB Output is correct
41 Execution timed out 1522 ms 30672 KB Time limit exceeded
42 Halted 0 ms 0 KB -