Submission #704725

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
704725	2023-03-02 19:44:06	rainboy	스탬프 수집 (JOI16_ho_t2)	C11	100 / 100	6 ms	6740 KiB

2016_ho_t2

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#include <stdio.h>
#include <string.h>
#define N 100000
long long max(long long a, long long b) { return a > b ? a : b; }
int main() {
  static char cc[N + 1];
  static long long dp[N + 1][4], dq[N + 1][4];
  int n, i, a;
  long long ans;
  scanf("%d%s", &n, cc);
  dp[0][0] = 1;
  for (i = 0; i < n; i++) {
    memcpy(dp[i + 1], dp[i], sizeof dp[i]);
    if (cc[i] == 'J')
      dp[i + 1][1] += dp[i + 1][0];
    else if (cc[i] == 'O')
      dp[i + 1][2] += dp[i + 1][1];
    else
      dp[i + 1][3] += dp[i + 1][2];
  }
  dq[n][3] = 1;
  for (i = n - 1; i >= 0; i--) {
    memcpy(dq[i], dq[i + 1], sizeof dq[i + 1]);
    if (cc[i] == 'J')
      dq[i][0] += dq[i][1];
    else if (cc[i] == 'O')
 
 
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Compilation message (stderr)

2016_ho_t2.c: In function 'main':
2016_ho_t2.c:14:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |  scanf("%d%s", &n, cc);
      |  ^~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 30 / 30
• Subtask 2: 20 / 20
• Subtask 3: 50 / 50