Submission #587504

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
587504	2022-07-02 03:04:55	benson1029	Horses (IOI15_horses)	C++14	100 / 100	525 ms	74792 KiB

horses

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include "horses.h"
#include<bits/stdc++.h>
using namespace std;
long long mod = 1e9+7;
long double seglog[2000005];
long long segmul[2000005];
long double lzylog[2000005];
long long lzymul[2000005];
int n;
long long x[500005], y[500005];
long long fpw(long long n, long long p) {
  if(p==0) return 1LL;
  long long t = fpw(n, p/2);
  t = (t*t) % mod;
  if(p%2) t = (t*n) % mod;
  return t;
}
long long inv(long long n) {
  return fpw(n, mod-2);
}
void push(int x) {
  seglog[x*2] += lzylog[x];
  seglog[x*2+1] += lzylog[x];
  lzylog[x*2] += lzylog[x];
  lzylog[x*2+1] += lzylog[x];
  lzylog[x] = 0;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

horses.cpp: In function 'long long int fpw(long long int, long long int)':
horses.cpp:13:25: warning: declaration of 'n' shadows a global declaration [-Wshadow]
   13 | long long fpw(long long n, long long p) {
      |               ~~~~~~~~~~^
horses.cpp:10:5: note: shadowed declaration is here
   10 | int n;
      |     ^
horses.cpp: In function 'long long int inv(long long int)':
horses.cpp:21:25: warning: declaration of 'n' shadows a global declaration [-Wshadow]
   21 | long long inv(long long n) {
      |               ~~~~~~~~~~^
horses.cpp:10:5: note: shadowed declaration is here
   10 | int n;
      |     ^
horses.cpp: In function 'void push(int)':
horses.cpp:25:15: warning: declaration of 'x' shadows a global declaration [-Wshadow]
   25 | void push(int x) {
      |           ~~~~^
horses.cpp:11:11: note: shadowed declaration is here
   11 | long long x[500005], y[500005];
      |           ^
horses.cpp: In function 'void seg_set(int, int, int, int, int, long double)':
horses.cpp:38:18: warning: declaration of 'x' shadows a global declaration [-Wshadow]
   38 | void seg_set(int x, int l, int r, int pos, int val, long double LOG) {
      |              ~~~~^
horses.cpp:11:11: note: shadowed declaration is here
   11 | long long x[500005], y[500005];
      |           ^
horses.cpp: In function 'void seg_upd(int, int, int, int, int, long long int, long double)':
horses.cpp:55:18: warning: declaration of 'x' shadows a global declaration [-Wshadow]
   55 | void seg_upd(int x, int l, int r, int ll, int rr, long long val, long double LOG) {
      |              ~~~~^
horses.cpp:11:11: note: shadowed declaration is here
   11 | long long x[500005], y[500005];
      |           ^
horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:85:39: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   85 |   seg_set(1, 0, n-1, i, (mulc * Y[i]) % mod, logc + log(Y[i]));
      |                         ~~~~~~~~~~~~~~^~~~~
horses.cpp:87:17: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   87 |  return segmul[1];
      |         ~~~~~~~~^
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:95:17: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   95 |  return segmul[1];
      |         ~~~~~~~~^
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:103:17: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
  103 |  return segmul[1];
      |         ~~~~~~~~^

• Subtask 1: 17 / 17
• Subtask 2: 17 / 17
• Subtask 3: 20 / 20
• Subtask 4: 23 / 23
• Subtask 5: 23 / 23