You given N and one line of length N (1<=N<=1000)than consist of letter in interval A..Z. Your task is to find out how often each letter from the alphabet is found in the line. First line of your output have to consist of total amount of unduplicated letters. Then your program have to print only the letters that exists in given line in the following format: LETTER COUNT ex : (A 1)

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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You given N and one line of length N (1<=N<=1000)than consist of letter in interval A..Z.
Your task is to find out how often each letter from the alphabet is found in the line.
First line of your output have to consist of total amount of unduplicated letters.
Then your program have to print only the letters that exists in given line in the following format:
LETTER COUNT ex : (A 1)
The letter have to be printed in alpahbet order (A,B,C...Z).
input 1:
1
A

output 1:
1
A 1

input 2:
6
ABBBAZ

output 2:
3
A 2
B 3
Z 1

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