#429988 (C++14) No.989 N×Mマス計算（K以上）

• 問題: No.989 N×Mマス計算（K以上）
• ユーザー: edamame882
• 提出日時: 2020-02-14 22:03:11
• 言語: C++14 (gcc 13.3.0 + boost 1.87.0)
• 結果: AC
• 実行時間: 29 ms / 2,000 ms
• コード長: 2,673 bytes
• コンパイル時間: 1,677 ms
• コンパイル使用メモリ: 174,320 KB
• 実行使用メモリ: 5,640 KB
• 最終ジャッジ日時: 2024-10-06 11:51:28
• 合計ジャッジ時間: 2,727 ms
• ジャッジサーバーID （参考情報）: judge4 / judge2

ファイルパターン	結果
sample	AC * 2
other	AC * 18

ソースコード

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#include <bits/stdc++.h>
using namespace std;
//repetition
#define FOR(i,a,b) for(ll i=(a);i<(b);++i)
#define rep(i, n) for(ll i = 0; i < (ll)(n); i++)
//container util
#define all(x) (x).begin(),(x).end()
//typedef
typedef long long ll;
typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<ll> VLL;
typedef vector<VLL> VVLL;
typedef vector<string> VS;
typedef pair<int, int> PII;
typedef pair<ll, ll> PLL;
//const value
//const ll MOD = 1e9 + 7;
//const int dx[] = {0,1,0,-1};//{0,0,1,1,1,-1,-1,-1};
//const int dy[] = {1,0,-1,0};//{1,-1,0,1,-1,0,1,-1};
//conversion
inline int toInt(string s) {int v; istringstream sin(s);sin>>v;return v;}
inline ll toLL(string s) {ll v; istringstream sin(s);sin>>v;return v;}
template<class T> inline string toString(T x) {ostringstream sout;sout<<x;return sout.str();}
// Mod int
const int mod = 1000000007;
struct mint {
  ll x;
  mint():x(0){}
  mint(ll x):x((x%mod+mod)%mod){}
  // mint(ll x):x(x){}
  mint& fix() { x = (x%mod+mod)%mod; return *this;}
  mint operator-() const { return mint(0) - *this;}
  mint& operator+=(const mint& a){ if((x+=a.x)>=mod) x-=mod; return *this;}
  mint& operator-=(const mint& a){ if((x+=mod-a.x)>=mod) x-=mod; return *this;}
  mint& operator*=(const mint& a){ (x*=a.x)%=mod; return *this;}
  mint operator+(const mint& a)const{ return mint(*this) += a;}
  mint operator-(const mint& a)const{ return mint(*this) -= a;}
  mint operator*(const mint& a)const{ return mint(*this) *= a;}
  bool operator<(const mint& a)const{ return x < a.x;}
  bool operator==(const mint& a)const{ return x == a.x;}
};
istream& operator>>(istream&i,mint&a){i>>a.x;return i;}
ostream& operator<<(ostream&o,const mint&a){o<<a.x;return o;}
typedef vector<mint> vm;
typedef vector<vm> vvm;
//
int main(){
  ios::sync_with_stdio(false);
  cin.tie(0);
  char cmd;
  int n,m;
  ll k;
  cin >> m >> n >> k;
  cin >> cmd;
  VLL x(n);
  VLL y(m);
  rep(i,n) cin >>  x[i];
  rep(i,m) cin >> y[i];
  sort(all(x));
  sort(all(y));
  if(cmd == '+'){
    ll ans = 0;
    VLL yy;
    yy.push_back(-1e12);
    rep(i,m) yy.push_back(y[i]);
    rep(i,n) {
      ll less  = k-x[i];
      if(less <= 0) {
        ans += m;
        continue;
      }
      ll outCnt = (lower_bound(all(yy),less) - yy.begin()) - 1;
      ans += m - outCnt ;
    }
    cout << ans << endl;
  }else{
    ll ans = 0;
    VLL yy;
    yy.push_back(-1e12);
    rep(i,m) yy.push_back(y[i]);
    rep(i,n) {
      if(x[i] >= k) {
        ans += m;
        continue;
      }
      ll less  = (k+x[i]-1)/x[i];
      ll outCnt = (lower_bound(all(yy),less) - yy.begin()) - 1;
      ans += m - outCnt ;
    }
    cout << ans << endl;
  }
  return 0;
}
 
 
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