제출 #20150

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
20150	2016-02-28 15:00:14	tonyjjw	괄호 (kriii4_R)	C++14	100 / 100	353 ms	16708 KiB

R

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//*
#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<algorithm>
#include<vector>
#define all(A) (A).begin(), (A).end()
 
using namespace std;
 
typedef long long ll;
typedef pair<int,int> pii;
 
const int MN = 1000000+10;
const ll mod = 1000000007;
 
ll fact[MN];
ll inv[MN];
 
ll mpow(ll a,ll p){
    ll r=1;
    while(p>0){
        if(p&1)r=r*a%mod;
        a=a*a%mod;
        p>>=1;
    }
    return r;
}
 
ll comb(ll n,ll r){
    return fact[n]*inv[r]%mod*inv[n-r]%mod;
 
 
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• Subtask 1: 8 / 8
• Subtask 2: 92 / 92