2.strcmp: compare two strings (string.h) / Language c

Published: 05 December 2016
on channel: Yassine ENNAJEM

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Hello everyone.

The functions predefined in the string.h library:
1.strlen: length of the string: https://goo.gl/eAnIYa
2.strcmp: compare two strings: https://goo.gl/Po9PJ0
3.strcpy: copy the contents of a string to another string: https://goo.gl/8EWYAq
4.strcat: cncaténer merge two strings: https://goo.gl/3zSr4o
5.strstr: test whether one string is present in another: https://goo.gl/R1VFMY
6.strchr: test whether a character is present in a string: https://goo.gl/zN8IpW

The characters in language c part1:    • langage c  les caractéres (partie 1) | tut...
The characters in language c part2:    • langage c  les caractéres (partie 2) | tut...
The strings of characters in language c (puts / gets):
   • les chaines de caractéres en langage c (pu...
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Exercises :
Exercise 1 :
Writing a program that reads a line of text that does not exceed 200 characters memorizes it in a TXT variable and then displays:
(A) the length L of the chain.
B) the number of 'e' contained in the text.
C) the entire countdown without changing the contents of the TXT variable.
D) the entire countdown, after reversing the order of characters in TXT:
            Here is a small sentence!
           ! Esarhp etitep enu iciov
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EX1: Correction: https://goo.gl/3gNB8d
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Exercise 2:
Write a program that reads a TXT text of less than 200 characters and removes all occurrences of the 'e' character by stacking the remaining elements. The changes will be in the same TXT variable.
Example:
   This line contains some letters e.
  Ctt lign continut que lstrs.
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EX2: Correction: https://goo.gl/9KZR9k
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Exercise 3:
Write a program that asks for the user's first and last name and displays the total length of the name without counting the spaces. Use the strlen function.
Example:
   Enter your name and surname: Mickey Mouse

   Hello Mickey Mouse!
Your name is 11 letters.
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EX3: Correction: https://goo.gl/XqMz83
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Exercise 4:
Writing a program that reads two strings of characters CH1 and CH2, compares them lexicographically and displays the result:
Example:
   Insert the first string: ABC
Insert the second string: abc
"ABC" precedes "abc"
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EX4: Correction: https://goo.gl/tA7Atw
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Exercise 5:
Write a program that reads two strings of characters CH1 and CH2 and copies the first half of CH1 and the first half of CH2 into a third string CH3. Show result.
Use the special functions of string.h.
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EX5: Correction: https://goo.gl/lneMTr
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Exercise 6:
Write a program that reads a regular verb in "er" on the keyboard and displays its conjugation to the present of the indicative of this verb. Check whether it is a verb in "er" before conjugating. Use the gets, puts, strcat and strlen functions.
Example:
      Verb: to celebrate
      I celebrate
      You celebrate
      It celebrates
      we celebrate
     You celebrate
      they celebrate
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EX6: Correction: https://goo.gl/HpGg0Z
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