Submission #31204

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
31204	2017-08-13 14:07:17	cscandkswon	Horses (IOI15_horses)	C++14	17 / 100	896 ms	41156 KiB

horses

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#include "horses.h"
#include <bits/stdc++.h>
using namespace std;
const int MAXN=500005;
const long long MOD=(1e9)+7;
int T[MAXN*3], M[MAXN*3], N, *X, *Y;
set<int, greater<int> > S;
void initTree(int idx, int l, int r){
    if(l==r){
        T[idx]=Y[l];
        return;
    }
    int m=(l+r)>>1, lidx=idx<<1, ridx=lidx+1;
    initTree(lidx, l, m);
    initTree(ridx, m+1, r);
    T[idx]=max(T[lidx], T[ridx]);
}
void updateTree(int idx, int l, int r, int t){
    if(l==r){
        T[idx]=Y[t];
        return;
    }
    int m=(l+r)>>1, lidx=idx<<1, ridx=lidx+1;
    if(t<=m) updateTree(lidx, l, m, t);
    if(t>m) updateTree(ridx, m+1, r, t);
    T[idx]=max(T[lidx], T[ridx]);
}
 
 
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Compilation message (stderr)

horses.cpp: In function 'void initmultiply(int, int, int)':
horses.cpp:47:11: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
     M[idx]=(long long)M[lidx]*M[ridx]%MOD;
           ^
horses.cpp: In function 'void updatemultiply(int, int, int, int)':
horses.cpp:58:11: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
     M[idx]=(long long)M[lidx]*M[ridx]%MOD;
           ^
horses.cpp: In function 'int getmultiply(int, int, int, int, int)':
horses.cpp:65:85: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
     return (long long)getmultiply(lidx, l, m, s, e)*getmultiply(ridx, m+1, r, s, e)%MOD;
                                                                                     ^
horses.cpp: In function 'int getans()':
horses.cpp:95:49: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
     return getmultiply(1, 0, N-1, 0, *idx)*ansy%MOD;
                                                 ^
horses.cpp:95:43: warning: 'ansy' may be used uninitialized in this function [-Wmaybe-uninitialized]
     return getmultiply(1, 0, N-1, 0, *idx)*ansy%MOD;
                                           ^

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