#446323 (C++17) No.1010 折って重ねて

• 問題: No.1010 折って重ねて
• ユーザー: LayCurse
• 提出日時: 2020-03-20 21:25:41
• 言語: C++17 (gcc 13.3.0 + boost 1.87.0)
• 結果: AC
• 実行時間: 3 ms / 2,000 ms
• コード長: 2,124 bytes
• コンパイル時間: 2,978 ms
• コンパイル使用メモリ: 210,384 KB
• 最終ジャッジ日時: 2025-01-09 08:10:12
• ジャッジサーバーID （参考情報）: judge2 / judge2

ファイルパターン	結果
sample	AC * 3
other	AC * 43

ソースコード

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#pragma GCC optimize ("Ofast")
#include<bits/stdc++.h>
using namespace std;
inline int my_getchar_unlocked(){
  static char buf[1048576];
  static int s = 1048576;
  static int e = 1048576;
  if(s == e && e == 1048576){
    e = fread_unlocked(buf, 1, 1048576, stdin);
    s = 0;
  }
  if(s == e){
    return EOF;
  }
  return buf[s++];
}
inline void rd(long long &x){
  int k;
  int m=0;
  x=0;
  for(;;){
    k = my_getchar_unlocked();
    if(k=='-'){
      m=1;
      break;
    }
    if('0'<=k&&k<='9'){
      x=k-'0';
      break;
    }
  }
  for(;;){
    k = my_getchar_unlocked();
    if(k<'0'||k>'9'){
      break;
    }
    x=x*10+k-'0';
  }
  if(m){
    x=-x;
  }
}
struct MY_WRITER{
  char buf[1048576];
  int s;
  int e;
  MY_WRITER(){
    s = 0;
    e = 1048576;
  }
  ~MY_WRITER(){
    if(s){
      fwrite_unlocked(buf, 1, s, stdout);
    }
  }
}
;
MY_WRITER MY_WRITER_VAR;
void my_putchar_unlocked(int a){
  if(MY_WRITER_VAR.s == MY_WRITER_VAR.e){
    fwrite_unlocked(MY_WRITER_VAR.buf, 1, MY_WRITER_VAR.s, stdout);
    MY_WRITER_VAR.s = 0;
  }
  MY_WRITER_VAR.buf[MY_WRITER_VAR.s++] = a;
}
inline void wt_L(char a){
  my_putchar_unlocked(a);
}
inline void wt_L(int x){
  int s=0;
  int m=0;
  char f[10];
  if(x<0){
    m=1;
    x=-x;
  }
  while(x){
    f[s++]=x%10;
    x/=10;
  }
  if(!s){
    f[s++]=0;
  }
  if(m){
    my_putchar_unlocked('-');
  }
  while(s--){
    my_putchar_unlocked(f[s]+'0');
  }
}
long long X;
long long Y;
long long H;
int main(){
  int res = 0;
  rd(X);
  rd(Y);
  rd(H);
  X *= 1000;
  Y *= 1000;
  for(;;){
    if(X > Y){
      swap(X, Y);
    }
    ;
    if(X > H){
      Y *= 2;
      H *= 4;
      res++;
      continue;
    }
    if(Y > H){
      X *= 2;
      H *= 4;
      res++;
      continue;
    }
    break;
  }
  wt_L(res);
  wt_L('\n');
  return 0;
}
// cLay varsion 20200317-1
// --- original code ---
// ll X, Y, H;
// {
//   int res = 0;
//   rd(X,Y,H);
//   X *= 1000;
//   Y *= 1000;
//   for(;;){
//     sortE(X, Y);
//     if(X > H) Y *= 2, H *= 4, res++, continue;
//     if(Y > H) X *= 2, H *= 4, res++, continue;
//     break;
//   }
//   wt(res);
// }
 
 
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