Submission #5420624


Source Code Expand

#include<stdio.h>
#include<stdlib.h>
#include<stdint.h>
#include<inttypes.h>

typedef int32_t i32;
typedef int64_t i64;

#define MIN(a,b) ((a) < (b) ? (a) : (b))

typedef struct node {
  i64 n;
  i64 min;
} node;

i64 eval (i64 n, i64 a, i64 r) {
  if (n <= a + r) return n;
  i64 x = n;
  i64 y = r + a + eval ((n + r - 1) / r, a, r);
  return MIN(x, y);
}

void run (void) {
  i64 n, a;
  scanf ("%" SCNi64 "%" SCNi64, &n, &a);
  node dp[64];
  i32 len = 0;
  dp[len++] = (node) {n, n};
  for (i64 i = 2; i * i <= n; ++i) {
    for (i32 j = 0; j < len; ++j) {
      i64 x = eval (dp[j].n, a, i);
      if (dp[j].min <= x) continue;
      i64 d = dp[j].min - x;
      for (i32 k = j - 1; k >= 0; --k) dp[k].min -= d;
      node q[64];
      i64 t = dp[j].n;
      i32 top = 0;
      while (t > a + i) {
	q[top++].n = t;
	t = (t + i - 1) / i;
      }
      q[top++] = (node) {t, t};
      for (i32 k = top - 2; k >= 0; --k) {
	q[k].min = MIN(q[k].n, i + a + q[k + 1].min);
      }
      i32 len = j;
      for (i32 k = 0; k < top; ++k) {
	dp[len++] = q[k];
	if (q[k].n == q[k].min) break;
      }
      break;
    }
  }
  printf ("%" PRIi64 "\n", dp[0].min);
}

int main (void) {
  run();
  return 0;
}

Submission Info

Submission Time
Task E - Cookies
User sansen
Language C (GCC 5.4.1)
Score 0
Code Size 1263 Byte
Status WA
Exec Time 30 ms
Memory 256 KB

Compile Error

./Main.c: In function ‘run’:
./Main.c:25:3: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   scanf ("%" SCNi64 "%" SCNi64, &n, &a);
   ^

Judge Result

Set Name sample dataset1 dataset2
Score / Max Score 0 / 0 0 / 500 0 / 500
Status
AC × 3
AC × 26
WA × 1
AC × 63
WA × 9
Set Name Test Cases
sample sample-01.txt, sample-02.txt, sample-03.txt
dataset1 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 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, sample-01.txt, sample-02.txt, sample-03.txt
Case Name Status Exec Time Memory
01-01.txt AC 1 ms 128 KB
01-02.txt AC 1 ms 128 KB
01-03.txt AC 1 ms 128 KB
01-04.txt WA 1 ms 128 KB
01-05.txt AC 1 ms 128 KB
01-06.txt AC 1 ms 128 KB
01-07.txt AC 1 ms 128 KB
01-08.txt AC 1 ms 128 KB
01-09.txt AC 1 ms 128 KB
01-10.txt AC 1 ms 128 KB
01-11.txt AC 1 ms 128 KB
01-12.txt AC 1 ms 128 KB
01-13.txt AC 1 ms 128 KB
01-14.txt AC 1 ms 128 KB
01-15.txt AC 1 ms 128 KB
01-16.txt AC 1 ms 128 KB
01-17.txt AC 1 ms 128 KB
01-18.txt AC 1 ms 128 KB
01-19.txt AC 0 ms 128 KB
01-20.txt AC 0 ms 128 KB
01-21.txt AC 1 ms 128 KB
01-22.txt AC 1 ms 128 KB
01-23.txt AC 1 ms 128 KB
01-24.txt AC 1 ms 128 KB
01-25.txt AC 1 ms 128 KB
01-26.txt AC 0 ms 128 KB
02-01.txt AC 0 ms 128 KB
02-02.txt AC 30 ms 128 KB
02-03.txt AC 30 ms 128 KB
02-04.txt AC 30 ms 128 KB
02-05.txt AC 30 ms 128 KB
02-06.txt AC 30 ms 128 KB
02-07.txt WA 30 ms 128 KB
02-08.txt WA 30 ms 128 KB
02-09.txt WA 30 ms 128 KB
02-10.txt WA 30 ms 128 KB
02-11.txt WA 30 ms 128 KB
02-12.txt AC 30 ms 128 KB
02-13.txt AC 30 ms 128 KB
02-14.txt AC 30 ms 128 KB
02-15.txt WA 30 ms 128 KB
02-16.txt AC 30 ms 128 KB
02-17.txt AC 30 ms 128 KB
02-18.txt AC 30 ms 128 KB
02-19.txt AC 30 ms 128 KB
02-20.txt AC 30 ms 128 KB
02-21.txt AC 30 ms 128 KB
02-22.txt AC 25 ms 256 KB
02-23.txt AC 17 ms 128 KB
02-24.txt AC 17 ms 128 KB
02-25.txt AC 1 ms 128 KB
02-26.txt AC 8 ms 128 KB
02-27.txt AC 8 ms 128 KB
02-28.txt AC 8 ms 128 KB
02-29.txt AC 26 ms 128 KB
02-30.txt AC 19 ms 128 KB
02-31.txt AC 24 ms 128 KB
02-32.txt WA 10 ms 128 KB
02-33.txt AC 30 ms 128 KB
02-34.txt AC 21 ms 128 KB
02-35.txt AC 29 ms 128 KB
02-36.txt WA 28 ms 128 KB
02-37.txt AC 23 ms 128 KB
02-38.txt AC 30 ms 128 KB
02-39.txt AC 26 ms 128 KB
02-40.txt AC 30 ms 128 KB
sample-01.txt AC 1 ms 128 KB
sample-02.txt AC 4 ms 128 KB
sample-03.txt AC 1 ms 128 KB