pvjc22/du1/program.c

#include <stdio.h>

int main(){
	int C = 0;
	char Big_Wort;
	int count = 0;
	while(1){
	C = getchar();
	if(C == EOF)
	break;
	if(C == '\n')
	count++;
	if(C >= 'a' && C <= 'z')
	C = C - 'a' + 'A';
	else if(C >= 'A' && C <= 'Z')
	C = C - 'A' + 'a';
	Big_Wort = C;
	putchar(Big_Wort);
	}
	printf("\nCount of lines: %d\n",count);
	return 0;
}