#include "pch.h"
#include <iostream>
#include <string.h>
using namespace std;

const size_t N = 120;
char* mystrchr(char arr[]);
int main() {
	typedef char cha[N];
	system("chcp 1251 > null");
	cha A;
	char key = 's';
	char *result;
	cout << "Ввод: ";
	gets_s(A);
	result = mystrchr(A);
	cout << result;
	return 0;
}
char* mystrchr(char A[N])
{
	int i = 0;
	char* j;
	while (A[i] != '\0') {
		if (A[i] == 's') {
			j = &A[i];
			return j;
		}
		i++;
	}
	return nullptr;
}