Data update

Task/Blum-integer/C++/blum-integer.cpp

@@ -4,24 +4,24 @@
 #include <iostream>
 #include <vector>
 
-bool is_prime_type_3(const int32_t number) {
+bool is_prime_type_3(const uint32_t& number) {
 	if ( number < 2 ) return false;
 	if ( number % 2 == 0 ) return false;
 	if ( number % 3 == 0 ) return number == 3;
 
-	for ( int divisor = 5; divisor * divisor <= number; divisor += 2 ) {
+	for ( uint32_t divisor = 5; divisor * divisor <= number; divisor += 2 ) {
 		if ( number % divisor == 0 ) { return false; }
 	}
 
 	return number % 4 == 3;
 }
 
-int32_t least_prime_factor(const int32_t number) {
+uint32_t least_prime_factor(const uint32_t& number) {
 	if ( number == 1 ) { return 1; }
     if ( number % 3 == 0 ) { return 3; }
     if ( number % 5 == 0 ) { return 5; }
 
-    for ( int divisor = 7; divisor * divisor <= number; divisor += 2 ) {
+    for ( uint32_t divisor = 7; divisor * divisor <= number; divisor += 2 ) {
 		if ( number % divisor == 0 ) { return divisor; }
 	}
 
@@ -29,15 +29,15 @@ int32_t least_prime_factor(const int32_t number) {
 }
 
 int main() {
-	int32_t blums[50];
-	int32_t blum_count = 0;
-	int32_t last_digit_counts[10] = {};
-	int32_t number = 1;
+	uint32_t blums[50];
+	uint32_t blum_count = 0;
+	uint32_t last_digit_counts[10] = {};
+	uint32_t number = 1;
 
 	while ( blum_count < 400'000 ) {
-		const int32_t prime = least_prime_factor(number);
+		const uint32_t prime = least_prime_factor(number);
 		if ( prime % 4 == 3 ) {
-			const int32_t quotient = number / prime;
+			const uint32_t quotient = number / prime;
 			if ( quotient != prime && is_prime_type_3(quotient) ) {
 				if ( blum_count < 50 ) {
 					blums[blum_count] = number;
@@ -46,7 +46,7 @@ int main() {
 				blum_count += 1;
 				if ( blum_count == 50 ) {
 					std::cout << "The first 50 Blum integers:" << std::endl;
-					for ( int32_t i = 0; i < 50; ++i ) {
+					for ( uint32_t i = 0; i < 50; ++i ) {
 						std::cout << std::setw(3) << blums[i] << ( ( i % 10 == 9 ) ? "\n" : " " );
 					}
 					std::cout << std::endl;
@@ -54,7 +54,8 @@ int main() {
 					std::cout << "The " << std::setw(6) << blum_count << "th Blum integer is: "
 						<< std::setw(7) << number << std::endl;
 					if ( blum_count == 400'000 ) {
-						std::cout << "\nPercent distribution of the first 400000 Blum integers:" << std::endl;
+						std::cout << "\n" << "Percent distribution of the first 400000 Blum integers:"
+								  << std::endl;
 						for ( const int32_t& i : { 1, 3, 7, 9 } ) {
 							std::cout << "    " << std::setw(6) << std::setprecision(5)
 								<< (double) last_digit_counts[i] / 4'000 << "% end in " << i << std::endl;