윤성우님의 C 프로그래밍 도전프로그래밍 TWO [3~4]

도전3]

#include <stdio.h> #define MAX 10 int main(void) { int arr[MAX]; int num, k, i = 0, j = 9; for(k = 0; k < MAX; k++) { printf("Input Number : "); scanf("%d", &num); if(num % 2 != 0) arr[i++] = num; else arr[j--] = num; } printf("------------------\n"); for(i = 0; i < MAX; i++) printf("%d\n", arr[i]); return 0; }
도전4]

#include <stdio.h> int flag; void palindrome(char* str, int size, int i); int main(void) { char str[50]; int len = 0; printf("Input String : "); scanf("%s", str); /* String Length */ while(*(str+len) != '\0') len++; palindrome(str, len, 0); if(flag == 1) printf("%s is Palindrome!!\n", str); else printf("%s is Non-Palindrome\n", str); return 0; } void palindrome(char* str, int size, int i) { if(*(str+i) == *(str+size-1) && i != size) { i++, size--; palindrome(str, size, i); //Recursive Call! flag = 1; } }