#include<stdlib.h>
#include<stdio.h>

int getstring(char**);
void statistics(char*, int*);
void printstat(int*);

int main() {
	char **buffer, input[81];
	int counts[26], i, bufs, exxit = 0;

	while(!exxit) {
		printf("Sisestage palun string:\n");
		
		buffer = malloc(sizeof(char*));
		bufs = 1;
		for(bufs=1; getstring(&buffer[bufs - 1]) != 1; bufs++)
			buffer = realloc(buffer, (bufs+1) * sizeof(char*));
		
		memset(counts, 0, 26 * sizeof(int));
		for(i=0; i < bufs; i++) {
			statistics(buffer[i], counts);
			free(buffer[i]);
		}

		free(buffer);
		
		printstat(counts);

		printf("\nKorrata(j/e): ");
		
		fgets(input, 81, stdin);
		if(input[0] == 'e' || input[0] == 'E')
			return 0;
	}

	return 0;
}

// buffer - tehakse malloc. hoiduda leketest.
int getstring(char **buffer) {
	char input[81];

	input[0] = ' ';
	input[1] = 0;
	*buffer = malloc(1);
	**buffer = 0;

	while(input[strlen(input)-1] != '\n') {
		fgets(input, 81, stdin);
		*buffer = realloc(*buffer, strlen(*buffer) + strlen(input) + 1);
		strcat(*buffer, input);
	}

	return strlen(*buffer);
}

void statistics(char *buffer, int *counts) {
	int i;
	
	for(i=0; buffer[i]!=0; i++) {
		if(buffer[i] > 90)
			buffer[i] -= 32;
		if(buffer[i] > 64 && buffer[i] < 91)
			counts[buffer[i]-65]++;
	}
}

void printstat(int *counts) {
	int i;

	for(i=65; i<91; i++)
		printf("  %c", (char) i);
	putchar('\n');
	for(i=0; i<26; i++)
		printf("%3i", counts[i]);
	putchar('\n');
}