Submission #722771

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
722771	2023-04-12 20:19:51	rainboy	Card Scoring (CCO19_day2problem1)	C++17	25 / 100	4867 ms	96992 KiB

Main

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#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#define N 1000000
int *xx[N]; double *yy[N]; int cnt[N], cnt_[N], xx_[N], n; double k;
int crossover(int x1, double y1, int x2, double y2) {
  int lower = x2, upper = n + 1;
  while (upper - lower > 1) {
    int x = (lower + upper) / 2;
    if (y1 + pow(x - x1, k) >= y2 + pow(x - x2, k))
      upper = x;
    else
      lower = x;
  }
  return upper;
}
void add(int a, double y) {
  while (cnt[a] && crossover(xx[a][cnt[a] - 2], yy[a][cnt[a] - 2], xx[a][cnt[a] - 1], yy[a][cnt[a] - 1]) <= crossover(xx[a][cnt[a] - 1], yy[a][cnt[a] - 1], xx_[a], y))
    cnt[a]--;
  if (cnt[a] == cnt_[a]) {
    xx[a] = (int *) realloc(xx[a], cnt_[a] * 2 * sizeof *xx[a]);
    yy[a] = (double *) realloc(yy[a], cnt_[a] * 2 * sizeof *yy[a]);
    cnt_[a] *= 2;
  }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:39:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |  scanf("%lf%d", &k, &n), k /= 2;
      |  ~~~~~^~~~~~~~~~~~~~~~~
Main.cpp:46:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   46 |   scanf("%d", &a), a--;
      |   ~~~~~^~~~~~~~~~

• Subtask 1: 4 / 4
• Subtask 2: 1 / 1
• Subtask 3: 5 / 5
• Subtask 4: 3 / 3
• Subtask 5: 3 / 3
• Subtask 6: 9 / 9