diff options
Diffstat (limited to 'others/easy20160714/25.c')
-rw-r--r-- | others/easy20160714/25.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/others/easy20160714/25.c b/others/easy20160714/25.c new file mode 100644 index 0000000..e01789c --- /dev/null +++ b/others/easy20160714/25.c @@ -0,0 +1,30 @@ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +int main() +{ + FILE *f = fopen("INP.TXT", "r"); + int n, k, *a, i, r = 1; + + fscanf(f, "%d %d", &n, &k); + a = malloc(n * sizeof(int)); + + for (i = 0; i < n; i++) + fscanf(f, "%d", a + i); + + fclose(f); + + k = n / k; + for (i = k; i < n; i += k) + if (memcmp(a, a + i, k * sizeof(int))) { + r = 0; + break; + } + + f = fopen("OUT.TXT", "w"); + fputs(r ? "YES\n" : "NO\n", f); + fclose(f); + + return 0; +} |