Data commit

Task/Super-d-numbers/C/super-d-numbers.c

@@ -0,0 +1,27 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <gmp.h>
+
+int main() {
+    for (unsigned int d = 2; d <= 9; ++d) {
+        printf("First 10 super-%u numbers:\n", d);
+        char digits[16] = { 0 };
+        memset(digits, '0' + d, d);
+        mpz_t bignum;
+        mpz_init(bignum);
+        for (unsigned int count = 0, n = 1; count < 10; ++n) {
+            mpz_ui_pow_ui(bignum, n, d);
+            mpz_mul_ui(bignum, bignum, d);
+            char* str = mpz_get_str(NULL, 10, bignum);
+            if (strstr(str, digits)) {
+                printf("%u ", n);
+                ++count;
+            }
+            free(str);
+        }
+        mpz_clear(bignum);
+        printf("\n");
+    }
+    return 0;
+}