#256788 (C++14) No.682 Average

• 問題: No.682 Average
• ユーザー: maroon_kuri
• 提出日時: 2018-05-11 22:25:37
• 言語: C++14 (gcc 13.3.0 + boost 1.87.0)
• 結果: AC
• 実行時間: 2 ms / 2,000 ms
• コード長: 2,345 bytes
• コンパイル時間: 1,641 ms
• コンパイル使用メモリ: 167,196 KB
• 実行使用メモリ: 5,376 KB
• 最終ジャッジ日時: 2024-06-28 04:06:53
• 合計ジャッジ時間: 2,036 ms
• ジャッジサーバーID （参考情報）: judge5 / judge2

ファイルパターン	結果
other	AC * 13

ソースコード

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#include <bits/stdc++.h>
using namespace std;
using ll=int64_t;
#define int ll
#define FOR(i,a,b) for(int i=int(a);i<int(b);i++)
#define REP(i,b) FOR(i,0,b)
#define MP make_pair
#define PB push_back
#define ALL(x) x.begin(),x.end()
#ifdef MAROON_LOCAL
#define cerr (cerr<<"-- line "<<__LINE__<<" -- ")
#else
class CerrDummy{}cerrDummy;
template<class T>
CerrDummy& operator<<(CerrDummy&cd,const T&){
    return cd;
}
using charTDummy=char;
using traitsDummy=char_traits<charTDummy>;
CerrDummy& operator<<(CerrDummy&cd,basic_ostream<charTDummy,traitsDummy>&(basic_ostream<charTDummy,traitsDummy>&)){
    return cd;
}
#define cerr cerrDummy
#endif
#define REACH cerr<<"reached"<<endl
#define DMP(x) cerr<<#x<<":"<<x<<endl
#define ZERO(x) memset(x,0,sizeof(x))
#define ONE(x) memset(x,-1,sizeof(x))
using pi=pair<int,int>;
using vi=vector<int>;
using ld=long double;
template<class T,class U>
ostream& operator<<(ostream& os,const pair<T,U>& p){
    os<<"("<<p.first<<","<<p.second<<")";
    return os;
}
template<class T>
ostream& operator <<(ostream& os,const vector<T>& v){
    os<<"{";
    REP(i,(int)v.size()){
        if(i)os<<",";
        os<<v[i];
    }
    os<<"}";
    return os;
}
ll read(){
    ll i;
    scanf("%" SCNd64,&i);
    return i;
}
void printSpace(){
    printf(" ");
}
void printEoln(){
    printf("\n");
}
void print(ll x,int suc=1){
    printf("%" PRId64,x);
    if(suc==1)
        printEoln();
    if(suc==2)
        printSpace();
}
string readString(){
    static char buf[3341000];
    scanf("%s",buf);
    return string(buf);
}
char* readCharArray(){
    static char buf[3341000];
    static int bufUsed=0;
    char* ret=buf+bufUsed;
    scanf("%s",ret);
    bufUsed+=strlen(ret)+1;
    return ret;
}
template<class T,class U>
void chmax(T& a,U b){
    if(a<b)
        a=b;
}
template<class T,class U>
void chmin(T& a,U b){
    if(b<a)
        a=b;
}
template<class T>
T Sq(const T& t){
    return t*t;
}
#define CAPITAL
void Yes(bool ex=true){
    #ifdef CAPITAL
    cout<<"YES"<<endl;
    #else
    cout<<"Yes"<<endl;
    #endif
    if(ex)exit(0);
}
void No(bool ex=true){
    #ifdef CAPITAL
    cout<<"NO"<<endl;
    #else
    cout<<"No"<<endl;
    #endif
    if(ex)exit(0);
}
const ll infLL=LLONG_MAX/3;
#ifdef int
const int inf=infLL;
#else
const int inf=INT_MAX/2-100;
#endif
signed main(){
    int a=read(),b=read();
    int s=a+b;
    const auto Count=[&](int x){
        x-=(3-s%3)%3;
        if(x<0)return int(0);
        else return x/3+1;
    };
    print(Count(b)-Count(a-1));
}
 
 
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