string of numbers / step by step

Strings and numbers in C

Here you learn the difference between concatenating strings and adding real numbers using sprintf() and atoi().

1) CodeActive line: 1

1char a[] = "10";

2char b[] = "5";

3char concat[] = "105";

4int suma = atoi(a) + atoi(b);

5int parcial = atoi("20px");

6printf("%s\n", concat);

7printf("%d\n", suma);

8printf("%d\n", parcial);

Step 1: a is defined as a char array with a number.

Step 1 / 8

2) Variables

a'10'

concat-

suma-

parcial-

3) Simulated Console

./string-numeros-demostdout