oj.uz

Submission #107550

# Submission time Handle Problem Language Result Execution time Memory
107550 2019-04-25T02:21:13 Z PeppaPig Horses (IOI15_horses) C++14
100 / 100
 325 ms 62840 KB 
#include "horses.h"
#include <bits/stdc++.h>
 
#define long long long
 
using namespace std;
 
const int N = 1<<19;
const int M = 1e9+7;
 
#define var int p = 1, int l = 0, int r = n-1
#define mid ((l + r) >> 1)
#define lb p<<1, l, mid
#define rb p<<1|1, mid+1, r
 
struct node {
    double log;
    long sum;
    node() : log(0), sum(1) { }
    node(double log, long sum) : log(log), sum(sum) { }
    friend node operator+(const node &a, const node &b) {
        node ret;
        ret.log = a.log + b.log;
        ret.sum = (a.sum * b.sum) % M;
        return ret;
    }
    friend bool operator<(const node &a, const node &b) {
        return make_pair(a.log, a.sum) < make_pair(b.log, b.sum);
    }
} t[N<<1], lz[N<<1];
 
int n, x[N], y[N];
node A[N];
 
void build(var) {
    if(l == r) return void(t[p] = A[l]);
    build(lb), build(rb);
    t[p] = t[p<<1] < t[p<<1|1] ? t[p<<1|1] : t[p<<1];
}
 
void push(var) {
    t[p] = t[p] + lz[p];
    if(l != r) {
        lz[p<<1] = lz[p<<1] + lz[p];
        lz[p<<1|1] = lz[p<<1|1] + lz[p];
    }
    lz[p] = node(0, 1);
}
 
void update(int x, int y, node k, var) {
    push(p, l, r);
    if(x > r || l > y) return;
    if(x <= l && r <= y) {
        lz[p] = lz[p] + k;
        push(p, l, r);
        return;
    }
    update(x, y, k, lb), update(x, y, k, rb);
    t[p] = t[p<<1] < t[p<<1|1] ? t[p<<1|1] : t[p<<1];
}
 
int init(int N, int X[], int Y[]) {
    n = N;
    node cul(0, 1);
    for(int i = 0; i < n; i++) {
        x[i] = X[i], y[i] = Y[i];
        cul = cul + node((double)log2(x[i]), x[i]);
        A[i] = cul + node((double)log2(y[i]), y[i]); 
    }
    build();
    return t[1].sum;
}
 
long modpow(long a, long b) {
    long ret = 1;
    for( ; b; b >>= 1) {
        if(b & 1) ret = (ret * a) % M;
        a = (a * a) % M;
    }
    return ret;
}
 
int updateX(int pos, int val) {
    double nlog = (double)log2(val) - (double)log2(x[pos]);
    long nsum = (1ll * val * modpow(x[pos], M-2)) % M;
    x[pos] = val;
    update(pos, n-1, node(nlog, nsum));
    return t[1].sum;
}
 
int updateY(int pos, int val) {
    double nlog = (double)log2(val) - (double)log2(y[pos]);
    long nsum = (1ll * val * modpow(y[pos], M-2)) % M;
    y[pos] = val;
    update(pos, pos, node(nlog, nsum));
    return t[1].sum;
}

Compilation message

horses.cpp: In constructor 'node::node(double, long long int)':
horses.cpp:20:32: warning: declaration of 'sum' shadows a member of 'node' [-Wshadow]
     node(double log, long sum) : log(log), sum(sum) { }
                                ^
horses.cpp:18:10: note: shadowed declaration is here
     long sum;
          ^~~
horses.cpp:20:32: warning: declaration of 'log' shadows a member of 'node' [-Wshadow]
     node(double log, long sum) : log(log), sum(sum) { }
                                ^
horses.cpp:17:12: note: shadowed declaration is here
     double log;
            ^~~
horses.cpp: In function 'void update(int, int, node, int, int, int)':
horses.cpp:50:38: warning: declaration of 'y' shadows a global declaration [-Wshadow]
 void update(int x, int y, node k, var) {
                                      ^
horses.cpp:32:14: note: shadowed declaration is here
 int n, x[N], y[N];
              ^
horses.cpp:50:38: warning: declaration of 'x' shadows a global declaration [-Wshadow]
 void update(int x, int y, node k, var) {
                                      ^
horses.cpp:32:8: note: shadowed declaration is here
 int n, x[N], y[N];
        ^
horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:62:33: warning: declaration of 'N' shadows a global declaration [-Wshadow]
 int init(int N, int X[], int Y[]) {
                                 ^
horses.cpp:8:11: note: shadowed declaration is here
 const int N = 1<<19;
           ^
horses.cpp:71:17: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
     return t[1].sum;
            ~~~~~^~~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:88:17: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
     return t[1].sum;
            ~~~~~^~~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:96:17: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
     return t[1].sum;
            ~~~~~^~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 35 ms 41336 KB Output is correct
2 Correct 34 ms 41332 KB Output is correct
3 Correct 34 ms 41344 KB Output is correct
4 Correct 37 ms 41208 KB Output is correct
5 Correct 36 ms 41336 KB Output is correct
6 Correct 36 ms 41340 KB Output is correct
7 Correct 34 ms 41336 KB Output is correct
8 Correct 34 ms 41432 KB Output is correct
9 Correct 36 ms 41344 KB Output is correct
10 Correct 33 ms 41336 KB Output is correct
11 Correct 44 ms 41464 KB Output is correct
12 Correct 35 ms 41344 KB Output is correct
13 Correct 37 ms 41336 KB Output is correct
14 Correct 33 ms 41336 KB Output is correct
15 Correct 42 ms 41336 KB Output is correct
16 Correct 36 ms 41316 KB Output is correct
17 Correct 37 ms 41336 KB Output is correct
18 Correct 33 ms 41344 KB Output is correct
19 Correct 34 ms 41336 KB Output is correct
20 Correct 33 ms 41472 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 41336 KB Output is correct
2 Correct 41 ms 41336 KB Output is correct
3 Correct 36 ms 41344 KB Output is correct
4 Correct 32 ms 41336 KB Output is correct
5 Correct 35 ms 41360 KB Output is correct
6 Correct 35 ms 41464 KB Output is correct
7 Correct 34 ms 41444 KB Output is correct
8 Correct 40 ms 41336 KB Output is correct
9 Correct 35 ms 41344 KB Output is correct
10 Correct 35 ms 41336 KB Output is correct
11 Correct 33 ms 41336 KB Output is correct
12 Correct 33 ms 41392 KB Output is correct
13 Correct 40 ms 41336 KB Output is correct
14 Correct 41 ms 41464 KB Output is correct
15 Correct 35 ms 41344 KB Output is correct
16 Correct 37 ms 41308 KB Output is correct
17 Correct 36 ms 41388 KB Output is correct
18 Correct 33 ms 41336 KB Output is correct
19 Correct 33 ms 41336 KB Output is correct
20 Correct 34 ms 41344 KB Output is correct
21 Correct 32 ms 41464 KB Output is correct
22 Correct 33 ms 41336 KB Output is correct
23 Correct 41 ms 41404 KB Output is correct
24 Correct 41 ms 41464 KB Output is correct
25 Correct 38 ms 41464 KB Output is correct
26 Correct 35 ms 41464 KB Output is correct
27 Correct 38 ms 41464 KB Output is correct
28 Correct 35 ms 41464 KB Output is correct
29 Correct 33 ms 41464 KB Output is correct
30 Correct 35 ms 41464 KB Output is correct
31 Correct 34 ms 41464 KB Output is correct
32 Correct 36 ms 41468 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 156 ms 50264 KB Output is correct
2 Correct 325 ms 62840 KB Output is correct
3 Correct 305 ms 53936 KB Output is correct
4 Correct 303 ms 57860 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 40 ms 41324 KB Output is correct
2 Correct 32 ms 41296 KB Output is correct
3 Correct 37 ms 41308 KB Output is correct
4 Correct 34 ms 41308 KB Output is correct
5 Correct 37 ms 41340 KB Output is correct
6 Correct 35 ms 41340 KB Output is correct
7 Correct 37 ms 41348 KB Output is correct
8 Correct 34 ms 41336 KB Output is correct
9 Correct 34 ms 41336 KB Output is correct
10 Correct 35 ms 41464 KB Output is correct
11 Correct 33 ms 41344 KB Output is correct
12 Correct 35 ms 41336 KB Output is correct
13 Correct 36 ms 41336 KB Output is correct
14 Correct 34 ms 41336 KB Output is correct
15 Correct 36 ms 41344 KB Output is correct
16 Correct 34 ms 41344 KB Output is correct
17 Correct 32 ms 41344 KB Output is correct
18 Correct 34 ms 41336 KB Output is correct
19 Correct 41 ms 41344 KB Output is correct
20 Correct 35 ms 41412 KB Output is correct
21 Correct 42 ms 41336 KB Output is correct
22 Correct 41 ms 41336 KB Output is correct
23 Correct 36 ms 41496 KB Output is correct
24 Correct 36 ms 41464 KB Output is correct
25 Correct 37 ms 41408 KB Output is correct
26 Correct 35 ms 41468 KB Output is correct
27 Correct 34 ms 41472 KB Output is correct
28 Correct 36 ms 41592 KB Output is correct
29 Correct 33 ms 41336 KB Output is correct
30 Correct 35 ms 41464 KB Output is correct
31 Correct 34 ms 41464 KB Output is correct
32 Correct 37 ms 41464 KB Output is correct
33 Correct 105 ms 53240 KB Output is correct
34 Correct 99 ms 53240 KB Output is correct
35 Correct 119 ms 60152 KB Output is correct
36 Correct 104 ms 60120 KB Output is correct
37 Correct 87 ms 51448 KB Output is correct
38 Correct 85 ms 52328 KB Output is correct
39 Correct 65 ms 51320 KB Output is correct
40 Correct 81 ms 55160 KB Output is correct
41 Correct 94 ms 51292 KB Output is correct
42 Correct 74 ms 51412 KB Output is correct
43 Correct 94 ms 55672 KB Output is correct
44 Correct 75 ms 55672 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 41416 KB Output is correct
2 Correct 33 ms 41336 KB Output is correct
3 Correct 33 ms 41344 KB Output is correct
4 Correct 33 ms 41340 KB Output is correct
5 Correct 35 ms 41472 KB Output is correct
6 Correct 34 ms 41416 KB Output is correct
7 Correct 39 ms 41336 KB Output is correct
8 Correct 35 ms 41340 KB Output is correct
9 Correct 35 ms 41464 KB Output is correct
10 Correct 37 ms 41464 KB Output is correct
11 Correct 34 ms 41464 KB Output is correct
12 Correct 37 ms 41344 KB Output is correct
13 Correct 34 ms 41336 KB Output is correct
14 Correct 31 ms 41332 KB Output is correct
15 Correct 36 ms 41344 KB Output is correct
16 Correct 38 ms 41336 KB Output is correct
17 Correct 30 ms 41464 KB Output is correct
18 Correct 30 ms 41344 KB Output is correct
19 Correct 31 ms 41336 KB Output is correct
20 Correct 30 ms 41344 KB Output is correct
21 Correct 30 ms 41336 KB Output is correct
22 Correct 34 ms 41336 KB Output is correct
23 Correct 35 ms 41464 KB Output is correct
24 Correct 36 ms 41472 KB Output is correct
25 Correct 37 ms 41404 KB Output is correct
26 Correct 34 ms 41464 KB Output is correct
27 Correct 36 ms 41464 KB Output is correct
28 Correct 36 ms 41464 KB Output is correct
29 Correct 39 ms 41388 KB Output is correct
30 Correct 33 ms 41464 KB Output is correct
31 Correct 35 ms 41464 KB Output is correct
32 Correct 36 ms 41440 KB Output is correct
33 Correct 188 ms 54076 KB Output is correct
34 Correct 323 ms 62840 KB Output is correct
35 Correct 294 ms 54092 KB Output is correct
36 Correct 320 ms 57848 KB Output is correct
37 Correct 105 ms 53240 KB Output is correct
38 Correct 93 ms 53340 KB Output is correct
39 Correct 103 ms 60180 KB Output is correct
40 Correct 114 ms 60228 KB Output is correct
41 Correct 97 ms 51384 KB Output is correct
42 Correct 102 ms 52344 KB Output is correct
43 Correct 77 ms 51420 KB Output is correct
44 Correct 104 ms 55376 KB Output is correct
45 Correct 79 ms 51320 KB Output is correct
46 Correct 85 ms 51364 KB Output is correct
47 Correct 87 ms 55644 KB Output is correct
48 Correct 82 ms 55544 KB Output is correct
49 Correct 302 ms 55224 KB Output is correct
50 Correct 323 ms 55460 KB Output is correct
51 Correct 217 ms 62148 KB Output is correct
52 Correct 221 ms 61652 KB Output is correct
53 Correct 281 ms 53624 KB Output is correct
54 Correct 211 ms 54136 KB Output is correct
55 Correct 159 ms 52344 KB Output is correct
56 Correct 196 ms 57080 KB Output is correct
57 Correct 164 ms 52984 KB Output is correct
58 Correct 164 ms 53512 KB Output is correct
59 Correct 86 ms 55644 KB Output is correct