C Programming Codes
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频道 C Programming Codes (@c_programming_codes) 英语 语言赛道中的 是活跃参与者。目前社区聚集了 13 412 名订阅者,在 技术与应用 类别中位列第 9 552,并在 印度 地区排名第 32 040 位。
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“C Programming Codes || Quizzes || DSA
Learn along with the community
Any queries
admin - @Pradeep_saii”
凭借高频更新(最新数据采集于 14 六月, 2026),频道始终保持新鲜度与高覆盖。分析显示受众积极互动,使其成为 技术与应用 类别中的关键影响点。
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13 408
Generate First N Prime Numbers
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
bool isPrime(int n) {
if (n <= 1) return false;
for (int i = 2; i * i <= n; i++) {
if (n % i == 0) return false;
}
return true;
}
int* generatePrimes(int n) {
int* primes = (int*)malloc(n * sizeof(int));
if (primes == NULL) return NULL;
int count = 0;
int num = 2;
while (count < n) {
if (isPrime(num)) {
primes[count] = num;
count++;
}
num++;
}
return primes;
}
int main() {
int n = 10;
int* primes = generatePrimes(n);
if (primes != NULL) {
printf("First %d prime numbers are: ", n);
for (int i = 0; i < n; i++) {
printf("%d ", primes[i]);
}
printf("\n");
free(primes);
}
return 0;
}13 408
Check Prime Number in Range
#include <stdio.h>
#include <stdbool.h>
#include <math.h>
bool isPrime(int num) {
if (num <= 1) return false;
for (int i = 2; i <= sqrt(num); i++) {
if (num % i == 0) return false;
}
return true;
}
void printPrimesInRange(int start, int end) {
for (int i = start; i <= end; i++) {
if (isPrime(i)) {
printf("%d ", i);
}
}
printf("\n");
}
int main() {
int start, end;
printf("Enter the start of the range: ");
scanf("%d", &start);
printf("Enter the end of the range: ");
scanf("%d", &end);
printf("Prime numbers in the range %d to %d are: ", start, end);
printPrimesInRange(start, end);
return 0;
}13 408
Count Digits Without % or /
#include <stdio.h>
int countDigits(int n) {
int count = 0;
if (n == 0) return 1;
if (n < 0) n = -n;
while (n > 0) {
n = n - (n / 10) * 10;
n = n / 10;
count++;
}
return count;
}
int main() {
int num = 12345;
printf("Number of digits in %d: %d\n", num, countDigits(num));
num = -987;
printf("Number of digits in %d: %d\n", num, countDigits(num));
num = 0;
printf("Number of digits in %d: %d\n", num, countDigits(num));
return 0;
}13 408
Count Digits Without % or /
#include <stdio.h>
int countDigits(int n) {
int count = 0;
if (n == 0) return 1;
while (n > 0) {
n = n - (n / 10) * 10;
n = n / 10;
count++;
}
return count;
}
int main() {
int num = 12345;
printf("Number of digits in %d: %d\n", num, countDigits(num));
return 0;
}13 408
Check Armstrong Number (n digits)
#include <stdio.h>
#include <math.h>
int main() {
int num, originalNum, remainder, n = 0, result = 0;
scanf("%d", &num);
originalNum = num;
while (originalNum != 0) {
originalNum /= 10;
++n;
}
originalNum = num;
while (originalNum != 0) {
remainder = originalNum % 10;
result += pow(remainder, n);
originalNum /= 10;
}
if (result == num)
printf("Armstrong");
else
printf("Not Armstrong");
return 0;
}13 408
Generate First N Prime Numbers
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
bool isPrime(int n) {
if (n <= 1) return false;
for (int i = 2; i * i <= n; i++) {
if (n % i == 0) return false;
}
return true;
}
int* generatePrimes(int n) {
int* primes = (int*)malloc(n * sizeof(int));
if (primes == NULL) return NULL;
int count = 0;
int num = 2;
while (count < n) {
if (isPrime(num)) {
primes[count] = num;
count++;
}
num++;
}
return primes;
}
int main() {
int n = 10;
int* primes = generatePrimes(n);
if (primes != NULL) {
printf("First %d prime numbers are: ", n);
for (int i = 0; i < n; i++) {
printf("%d ", primes[i]);
}
printf("\n");
free(primes);
}
return 0;
}13 408
Check Prime Number in Range
#include <stdio.h>
#include <stdbool.h>
bool isPrime(int num) {
if (num <= 1) return false;
for (int i = 2; i * i <= num; i++) {
if (num % i == 0) return false;
}
return true;
}
void printPrimesInRange(int start, int end) {
for (int i = start; i <= end; i++) {
if (isPrime(i)) {
printf("%d ", i);
}
}
printf("\n");
}
int main() {
int start, end;
scanf("%d %d", &start, &end);
printPrimesInRange(start, end);
return 0;
}
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