제출 #62417

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
62417	2018-07-28 11:59:44	Tenuun	말 (IOI15_horses)	C++17	100 / 100	627 ms	43024 KiB

horses

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#include<bits/stdc++.h>
#define mod 1000000007
#define ll long long
using namespace std;
int n, tr[2000000], id[500001];
ll bit[500001];
ll now=1;
vector<int>x, y;
set<int>a;
void update(int ind, int val){
  if(ind==0) return;
    while(ind<=500000){
        bit[ind]*=val;
        bit[ind]%=mod;
        ind+=ind&-ind;
    }
}
ll get(int ind){
    if(ind<0 || ind>n) return 1;
    ll ans=1;
    while(ind>0){
        ans*=bit[ind];
        ans%=mod;
        ind-=ind&-ind;
    }
    return ans;
 
 
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컴파일 시 표준 에러 (stderr) 메시지

horses.cpp: In function 'long long int find()':
horses.cpp:77:8: warning: declaration of 'now' shadows a global declaration [-Wshadow]
     ll now=t;
        ^~~
horses.cpp:9:4: note: shadowed declaration is here
 ll now=1;
    ^~~
horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:104:16: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
     return find();
            ~~~~^~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:118:40: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
     if(x[pos]==1 && val==1) return find();
                                    ~~~~^~
horses.cpp:120:45: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
         update(pos+1, (val*pw(x[pos], mod-2)%mod));
                       ~~~~~~~~~~~~~~~~~~~~~~^~~~~
horses.cpp:122:20: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
         return find();
                ~~~~^~
horses.cpp:131:25: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
         update(pos+1, pw(x[pos], mod-2));
                       ~~^~~~~~~~~~~~~~~
horses.cpp:134:16: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
     return find();
            ~~~~^~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:140:16: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
     return find();
            ~~~~^~

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