CODE FESTIVAL 2016 Final

Submission #992628

Source codeソースコード

#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <cassert>
#include <iostream>
#include <sstream>
#include <vector>
#include <queue>
#include <set>
#include <map>
#include <utility>
#include <numeric>
#include <algorithm>
#include <bitset>
#include <complex>
#include <array>
#include <list>
#include <stack>
#include <valarray>

using namespace std;

typedef unsigned uint;
typedef long long Int;
typedef unsigned long long UInt;

const int INF = 1001001001;
const Int INFLL = 1001001001001001001LL;

template<typename T> void pv(T a, T b) { for (T i = a; i != b; ++i) cout << *i << " "; cout << endl; }
template<typename T> void chmin(T& a, T b) { if (a > b) a = b; }
template<typename T> void chmax(T& a, T b) { if (a < b) a = b; }
int in() { int x; scanf("%d", &x); return x; }
double fin() { double x; scanf("%lf", &x); return x; }
Int lin() { Int x; scanf("%lld", &x); return x; }

// Int dp[1<<20], dp2[1<<20];

int main() {
  Int N = lin();
  Int A = lin();
  const Int LIM = 1<<20;

  // dp[1] = 0;
  // for (int x = 1; x < LIM; ++x) {
  //   for (int xx = x + x, k = 2; xx < LIM; ++k, xx += x) {
  //     chmin(dp[xx], dp[x] + k + A);
  //   }
  // }

  // Int res = INFLL;
  // for (int x = 1; x < LIM; ++x) {
  //   chmin(res, dp[x] + (N + x - 1) / x);
  // }

  Int res = N;
  for (int x = 2; x < LIM; ++x) {
    chmin(res, x + A + (N + x - 1) / x);
  }
  for (int x = LIM; x >= 1; --x) {
    Int v = (N + x - 1) / x;
    chmin(res, v + A + (N + v - 1) / v);
  }

  for (int as = 2; as <= 40; ++as) {
    Int v = (1LL << as);
    Int ksum = 2 * as;
    vector<int> ks;
    for (int i = 0; i < as; ++i) {
      ks.push_back(2);
    }
    while (true) {
      chmin(res, (N + v - 1) / v + A * as + ksum);
      if (v >= N) {
        break;
      }
      sort(ks.begin(), ks.end());
      v = v / ks[0] * (ks[0] + 1);
      ++ks[0];
      ++ksum;
    }
  }

  printf("%lld\n", res);

  return 0;
}

Submission

Task問題 E - Cookies
User nameユーザ名 japlj
Created time投稿日時
Language言語 C++14 (GCC 5.4.1)
Status状態 AC
Score得点 1000
Source lengthソースコード長 2029 Byte
File nameファイル名
Exec time実行時間 114 ms
Memory usageメモリ使用量 384 KB

Compiler messageコンパイルメッセージ

./Main.cpp: In function ‘int in()’:
./Main.cpp:34:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
int in() { int x; scanf("%d", &x); return x; }
^
./Main.cpp: In function ‘double fin()’:
./Main.cpp:35:42: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
double fin() { double x; scanf("%lf", &x); return x; }
^
./Main.cpp: In function ‘Int lin()’:
./Main.cpp:36:37: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
Int lin() { Int x; scanf("%lld", &x); return x; }
^

Test case

Set

Set name Score得点 / Max score Cases
sample - sample-01.txt,sample-02.txt,sample-03.txt
dataset1 500 / 500 sample-01.txt,01-01.txt,01-02.txt,01-03.txt,01-04.txt,01-05.txt,01-06.txt,01-07.txt,01-08.txt,01-09.txt,01-10.txt,01-11.txt,01-12.txt,01-13.txt,01-14.txt,01-15.txt,01-16.txt,01-17.txt,01-18.txt,01-19.txt,01-20.txt,01-21.txt,01-22.txt,01-23.txt,01-24.txt,01-25.txt,01-26.txt
dataset2 500 / 500 sample-01.txt,sample-02.txt,sample-03.txt,01-01.txt,01-02.txt,01-03.txt,01-04.txt,01-05.txt,01-06.txt,01-07.txt,01-08.txt,01-09.txt,01-10.txt,01-11.txt,01-12.txt,01-13.txt,01-14.txt,01-15.txt,01-16.txt,01-17.txt,01-18.txt,01-19.txt,01-20.txt,01-21.txt,01-22.txt,01-23.txt,01-24.txt,01-25.txt,01-26.txt,02-01.txt,02-02.txt,02-03.txt,02-04.txt,02-05.txt,02-06.txt,02-07.txt,02-08.txt,02-09.txt,02-10.txt,02-11.txt,02-12.txt,02-13.txt,02-14.txt,02-15.txt,02-16.txt,02-17.txt,02-18.txt,02-19.txt,02-20.txt,02-21.txt,02-22.txt,02-23.txt,02-24.txt,02-25.txt,02-26.txt,02-27.txt,02-28.txt,02-29.txt,02-30.txt,02-31.txt,02-32.txt,02-33.txt,02-34.txt,02-35.txt,02-36.txt,02-37.txt,02-38.txt,02-39.txt,02-40.txt

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
01-01.txt AC 35 ms 256 KB
01-02.txt AC 35 ms 256 KB
01-03.txt AC 35 ms 256 KB
01-04.txt AC 35 ms 256 KB
01-05.txt AC 35 ms 256 KB
01-06.txt AC 35 ms 256 KB
01-07.txt AC 35 ms 256 KB
01-08.txt AC 35 ms 256 KB
01-09.txt AC 35 ms 256 KB
01-10.txt AC 35 ms 256 KB
01-11.txt AC 35 ms 256 KB
01-12.txt AC 35 ms 256 KB
01-13.txt AC 35 ms 256 KB
01-14.txt AC 36 ms 256 KB
01-15.txt AC 35 ms 256 KB
01-16.txt AC 35 ms 256 KB
01-17.txt AC 35 ms 256 KB
01-18.txt AC 36 ms 256 KB
01-19.txt AC 35 ms 256 KB
01-20.txt AC 35 ms 256 KB
01-21.txt AC 35 ms 256 KB
01-22.txt AC 36 ms 256 KB
01-23.txt AC 35 ms 256 KB
01-24.txt AC 36 ms 256 KB
01-25.txt AC 36 ms 256 KB
01-26.txt AC 36 ms 256 KB
02-01.txt AC 35 ms 256 KB
02-02.txt AC 104 ms 256 KB
02-03.txt AC 104 ms 256 KB
02-04.txt AC 104 ms 256 KB
02-05.txt AC 104 ms 256 KB
02-06.txt AC 104 ms 256 KB
02-07.txt AC 104 ms 256 KB
02-08.txt AC 104 ms 256 KB
02-09.txt AC 104 ms 256 KB
02-10.txt AC 104 ms 256 KB
02-11.txt AC 104 ms 256 KB
02-12.txt AC 104 ms 256 KB
02-13.txt AC 104 ms 256 KB
02-14.txt AC 104 ms 256 KB
02-15.txt AC 104 ms 256 KB
02-16.txt AC 104 ms 256 KB
02-17.txt AC 104 ms 256 KB
02-18.txt AC 104 ms 256 KB
02-19.txt AC 114 ms 256 KB
02-20.txt AC 104 ms 256 KB
02-21.txt AC 104 ms 256 KB
02-22.txt AC 104 ms 256 KB
02-23.txt AC 104 ms 256 KB
02-24.txt AC 110 ms 256 KB
02-25.txt AC 36 ms 256 KB
02-26.txt AC 53 ms 256 KB
02-27.txt AC 53 ms 256 KB
02-28.txt AC 54 ms 256 KB
02-29.txt AC 94 ms 256 KB
02-30.txt AC 78 ms 256 KB
02-31.txt AC 88 ms 256 KB
02-32.txt AC 57 ms 256 KB
02-33.txt AC 102 ms 256 KB
02-34.txt AC 83 ms 256 KB
02-35.txt AC 101 ms 256 KB
02-36.txt AC 98 ms 256 KB
02-37.txt AC 87 ms 384 KB
02-38.txt AC 104 ms 256 KB
02-39.txt AC 104 ms 256 KB
02-40.txt AC 103 ms 256 KB
sample-01.txt AC 35 ms 256 KB
sample-02.txt AC 104 ms 256 KB
sample-03.txt AC 36 ms 256 KB