Submission #694973

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
694973	2023-02-04 16:05:23	rainboy	Telegraph (JOI16_telegraph)	C11	100 / 100	35 ms	3532 KiB

telegraph

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#include <stdio.h>
#include <string.h>
#define N 100000
#define INF 0x3f3f3f3f
int min(int a, int b) { return a < b ? a : b; }
int main() {
  static int pp[N], cc1[N], cc2[N], jj[N];
  static char visited[N];
  int n, i, j, c, x;
  long long ans;
  scanf("%d", &n);
  memset(jj, -1, n * sizeof *jj);
  ans = 0;
  for (j = 0; j < n; j++) {
    scanf("%d%d", &i, &c), i--;
    pp[j] = i;
    if (cc1[i] < c)
      cc2[i] = cc1[i], cc1[i] = c, jj[i] = j;
    else if (cc2[i] < c)
      cc2[i] = c;
    ans += c;
  }
  for (i = 0; i < n; i++)
    ans -= cc1[i];
  for (i = 0; i < n; i++)
    if (!visited[i]) {
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

telegraph.c: In function 'main':
telegraph.c:15:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~
telegraph.c:19:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |   scanf("%d%d", &i, &c), i--;
      |   ^~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 30 / 30
• Subtask 3: 30 / 30
• Subtask 4: 30 / 30