# Spring-Boo-BackEnd
#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <iostream>
#include <cstring>
#include <string.h>
#include <windows.h>
int strlen(char s[]) {
	char* p = s;
	while (*p++);
	return p - s - 1;
	
}
int strcpy(char s[]) {
	char* p = s;
	while (*p++);
	return p - s - 1;
}
int strcat(char s[]) {
	char* p = s;
	while (*p++);
	return p - s - 1;
}
int strcmp(char s[], char d[]) {
	/*char* p = s;
	while (*p++);
	return p - s - 1;*/
	return 0;
}
int strspn(char s[], char d[], char f[]) {
	return 0;
}
int main() {
	SetConsoleCP(1251);
	SetConsoleOutputCP(1251);
	//1:
	/*char s[10] = "HI";
	printf("len = %d\n", strlen(s));
	s[2] = ' '; s[3] = '\0';
	printf("len = %d\n", strlen(s));
	s[3] = 'w'; s[4] = 'o'; s[5] = 'r'; s[6] = 'l'; s[7] = 'd'; s[8] = '\0';
	printf("len = %d\n", strlen(s));*/

	//2:
	/*char s[] = "buttom";
	char dest[] = "no buttom";
	printf("s = %s, dest = %s\n", s, dest);
	strcpy(dest, s);
	printf("s = %s, dest = %s\n", s, dest);*/

	//3:
	/*char s[100] = "buttom";
	char d[100] = "!!!!";
	printf("s = %s, d = %s\n", s, d);
	strcat(s, d);
	printf("s = %s, d = %s\n", s, d);
	strcat(s, "     ");
	printf("s = %s, d = %s", s, d);*/

	//4:
	/*int o = 0, i = 0;
	char s[] = "strcmp";
	char d[] = "strcat";
	for (int o = 0; s[o] != '\0' && d[o] != '\0'; o++) {
		if (s[o] == d[o]) i++;
	}
	printf("s = %s, d = %s, f = %s\ni = %d", s, d, i);*/

	//5:
	char s[] = "strcmp";
	char d[] = "str0py";
	char f[] = "t00";
	int n1 = strspn(s, f);
	int n2 = strspn(f, d);
	int n = strspn(s, d);
	int min = n;
	min = (min < n1) ? min : n1;
	min = (min < n2) ? min : n2;
	printf("n = %d", min);

	

	

	return 0;
}