Submission #22679

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
22679	2017-04-30 06:27:42	삼*전자 그린픽스 (#40)	hi (KRIII5_HI)	C++98	2 / 7	3 ms	1256 KiB

HI

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#include<stdio.h>
#define M 1000000007
int n;
int a[109];
int dx[6] = { 1,1,0,-1,-1,0 };
long long int dd[109][109];
int rr[109][109];
long long int dp_small(int p, int q)
{
  int i, j, k;
  if (p < q) { k = p; p = q; q = k; }
  if (q < 0)return 0;
  if (rr[p][q]) return dd[p][q];
  rr[p][q] = 1;
  if (q == 0)return dd[p][q] = p;
  long long int res = 0;
  for (i = 0; i < p; i++) {
    k = i % 6;
    if (dx[k] == 1) {
      res = (res + dp_small(p - i - 1, q)) % M;
    }
    else if (dx[k] == -1) {
      res = (res - dp_small(p - i - 1, q) + M) % M;
    }
  }
  for (i = 0; i < q; i++) {
    k = i % 6;
    if (dx[k] == 1) {
      res = (res + dp_small(q - i - 1, p)) % M;
 
 
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Compilation message (stderr)

HI.cpp: In function 'long long int dp_small(int, int)':
HI.cpp:10:9: warning: unused variable 'j' [-Wunused-variable]
  int i, j, k;
         ^
HI.cpp: In function 'int main()':
HI.cpp:70:15: warning: unused variable 'l' [-Wunused-variable]
  int i, j, k, l;
               ^
HI.cpp:71:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
                 ^
HI.cpp:73:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &a[i]);
                     ^

• Subtask 1: 2 / 2
• Subtask 2: 0 / 5