fix challenge generation

challenges/pcg64-challenge.c

@@ -20,7 +20,7 @@ int main()
     }
 
     printf("Seed[0] : %016" PRIx64 " %016" PRIx64 "\n", (uint64_t) (seeds[0] >> 64), (uint64_t) seeds[0]);
-    printf("Seed[0] : %016" PRIx64 " %016" PRIx64 "\n\n", (uint64_t) (seeds[1] >> 64), (uint64_t) seeds[1]);
+    printf("Seed[1] : %016" PRIx64 " %016" PRIx64 "\n\n", (uint64_t) (seeds[1] >> 64), (uint64_t) seeds[1]);
 
     pcg64_random_t rng;
     pcg64_srandom_r(&rng, seeds[0], seeds[1]);
@@ -28,7 +28,6 @@ int main()
     printf("Predictor input:\n");
     for (int i = 0; i < 32; i++)
         printf("X[%2d] = 0x%016" PRIx64 "\n", i, pcg64_random_r(&rng));       
-        
     printf("\n");
     printf("Remaining of the sequence (predictor output, in principle):\n");
     for (int i = 32; i < 48; i++)

challenges/pcg64s-challenge.c

@@ -25,7 +25,6 @@ int main()
     printf("Predictor input:\n");
     for (int i = 0; i < 3; i++)
         printf("X[%2d] = 0x%016" PRIx64 "\n", i, pcg64s_random_r(&rng));
-        
     printf("\n");
     printf("Remaining of the sequence (predictor output, in principle):\n");
     for (int i = 3; i < 10; i++)