Submission #984246

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
984246	2024-05-16 12:00:24	LucaIlie	Horses (IOI15_horses)	C++17	34 / 100	1567 ms	46520 KiB

horses

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#include "horses.h"
#include <bits/stdc++.h>
using namespace std;
const int MAX_N = 5e5;
const int MOD = 1e9 + 7;
struct AIB1 {
    int aib[MAX_N + 1];
    void init() {
        for ( int i = 0; i <= MAX_N; i++ )
            aib[i] = 1;
    }
    void update( int i, int x ) {
        while ( i <= MAX_N ) {
            aib[i] = (long long)aib[i] * x % MOD;
            i += (i & -i);
        }
    }
    int query( int i ) {
        int p = 1;
        while ( i > 0 ) {
            p = (long long)p * aib[i] % MOD;
            i -= (i & -i);
        }
        return p;
 
 
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Compilation message (stderr)

horses.cpp: In member function 'void AIB1::update(int, int)':
horses.cpp:19:44: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   19 |             aib[i] = (long long)aib[i] * x % MOD;
      |                      ~~~~~~~~~~~~~~~~~~~~~~^~~~~
horses.cpp: In member function 'int AIB1::query(int)':
horses.cpp:27:39: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   27 |             p = (long long)p * aib[i] % MOD;
      |                 ~~~~~~~~~~~~~~~~~~~~~~^~~~~
horses.cpp: In function 'int lgPut(int, int)':
horses.cpp:65:26: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   65 |     p = (long long)p * p % MOD;
      |         ~~~~~~~~~~~~~~~~~^~~~~
horses.cpp:67:30: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   67 |         p = (long long)p * a % MOD;
      |             ~~~~~~~~~~~~~~~~~^~~~~
horses.cpp: In function 'int answer()':
horses.cpp:94:48: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   94 |     return (long long)horses.query( i ) * y[i] % MOD;
      |            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~

• Subtask 1: 17 / 17
• Subtask 2: 17 / 17
• Subtask 3: 0 / 20
• Subtask 4: 0 / 23
• Subtask 5: 0 / 23