{"id":3565,"date":"2025-08-02T16:49:36","date_gmt":"2025-08-02T15:49:36","guid":{"rendered":"https:\/\/workboot.fr\/ciela\/?page_id=3565"},"modified":"2025-08-02T17:32:42","modified_gmt":"2025-08-02T16:32:42","slug":"exercice-formats-printf","status":"publish","type":"page","link":"https:\/\/workboot.fr\/ciela\/exercice-formats-printf\/","title":{"rendered":"exercices formats printf"},"content":{"rendered":"\n

Exercice 1: les bases<\/h2>\n\n\n\n
#include <stdio.h>\n#include <stdlib.h>\n\nint main()\n{\n    int age = 25;\n    float taille = 1.75f;\n    char initiale = 'J';\n    char nom[] = \"Dupont\";\n    \n    \/* Question 1.1 *\/\n    printf(\"Nom: __\\n\", nom);\n    \/* Question 1.2 *\/\n    printf(\"Initiale: __\\n\", initiale);\n    \/* Question 1.3 *\/\n    printf(\"Age: __ ans\\n\", age);\n    \/* Question 1.4 *\/\n    printf(\"Taille: __ m\\n\", taille);\n    \n    return EXIT_SUCCESS;\n}<\/pre>\n\n\n\n
Questions :<\/strong>
1.1 Compl\u00e9ter avec %s<\/code> pour afficher le nom
1.2 Compl\u00e9ter avec %c<\/code> pour l’initiale
1.3 Compl\u00e9ter avec %d<\/code> pour l’\u00e2ge en d\u00e9cimal
1.4 Compl\u00e9ter avec %.2f<\/code> pour la taille avec 2 d\u00e9cimales<\/p>\n\n\n\n
<\/p>\n\n\n\n
Solution<\/summary>\n
printf(\"Nom: %s\\n\", nom);\nprintf(\"Initiale: %c\\n\", initiale);\nprintf(\"Age: %d ans\\n\", age);\nprintf(\"Taille: %.2f m\\n\", taille);<\/pre>\n\n\n\n
Exercice 2 : Notation %d vs %i<\/h2>\n\n\n\n
#include <stdio.h>\n#include <stdlib.h>\n\nint main()\n{\n    int b = 015;  \/* Octal *\/\n    int c = 0x15; \/* Hexad\u00e9cimal *\/\n    \n    \/* Question 2.1 *\/\n    printf(\"b (octal) avec %%d: __\\n\", b);\n    \/* Question 2.2 *\/\n    printf(\"b (octal) avec %%i: __\\n\", b);\n    \/* Question 2.3 *\/\n    printf(\"c (hexa) avec %%d: __\\n\", c);\n    \n    return EXIT_SUCCESS;\n}<\/pre>\n<\/details>\n\n\n\n
Questions :<\/strong>
2.1 Afficher b<\/code> avec %d<\/code> (affiche 13)
2.2 Afficher b<\/code> avec %i<\/code> (affiche aussi 13)
2.3 Afficher c<\/code> avec %d<\/code> (affiche 21)<\/p>\n\n\n\n
Solution<\/summary>\n
printf(\"b (octal) avec %%d: %d\\n\", b);\nprintf(\"b (octal) avec %%i: %i\\n\", b);\nprintf(\"c (hexa) avec %%d: %d\\n\", c);<\/pre>\n<\/details>\n\n\n\n
<\/p>\n\n\n\n
Exercice 3 : Formatage avanc\u00e9<\/h2>\n\n\n\n
#include <stdio.h>\n#include <stdlib.h>\n\nint main()\n{\n    double pi = 3.141592653589793;\n    \n    \/* Question 3.1 *\/\n    printf(\"Pi scientifique: __\\n\", pi);\n    \/* Question 3.2 *\/\n    printf(\"Pi 5 decimales: __\\n\", pi);\n    \n    return EXIT_SUCCESS;\n}<\/pre>\n\n\n\n
Questions :<\/strong>
3.1 Utiliser %e<\/code> pour la notation scientifique
3.2 Utiliser %.5f<\/code> pour 5 d\u00e9cimales<\/p>\n\n\n\n
<\/p>\n\n\n\n
Solution:<\/summary>\n
printf(\"Pi scientifique: %e\\n\", pi);\nprintf(\"Pi 5 decimales: %.5f\\n\", pi);<\/pre>\n\n\n\n
Pi scientifique: 3.141593e+00\nPi 5 decimales: 3.14159<\/code><\/pre>\n<\/details>\n\n\n\n
Exercice 4 : Alignement texte<\/h2>\n\n\n\n
#include <stdio.h>\n#include <stdlib.h>\n\nint main()\n{\n    char prenom[] = \"Marie\";\n    \n    \/* Question 4.1 *\/\n    printf(\"Pr\u00e9nom (10c droit) : __\\n\", prenom);\n    \/* Question 4.2 *\/\n    printf(\"Pr\u00e9nom (10c gauche): __\\n\", prenom);\n    \n    return EXIT_SUCCESS;\n}<\/pre>\n\n\n\n
Questions :<\/strong>
4.1 Aligner \u00e0 droite avec %10s<\/code>
4.2 Aligner \u00e0 gauche avec %-10s<\/code><\/p>\n\n\n\n
Solution<\/summary>\n
<\/p>\n<\/details>\n\n\n\n
printf(\"Pr\u00e9nom (10c droit): %10s\\n\", prenom);\nprintf(\"Pr\u00e9nom (10c gauche): %-10s\\n\", prenom);<\/pre>\n\n\n\n
Pr\u00e9nom (10c droit) :      Marie\nPr\u00e9nom (10c gauche): Marie  \n                     1234567890   <\/code><\/pre>\n\n\n\n
Exercice 5 : Format combin\u00e9<\/h2>\n\n\n\n
#include <stdio.h>\n#include <stdlib.h>\n\nint main()\n{\n    int h = 14, m = 5;\n    float temp = 23.7f;\n    \n    \/* Question 5 *\/\n    printf(\"Il est __:__ et il fait __\u00b0C\\n\", h, m, temp);\n    \n    return EXIT_SUCCESS;\n}<\/pre>\n\n\n\n
<\/p>\n\n\n\n
Solution:<\/summary>\n
printf(\"Il est %02d:%02d et il fait %.1f\u00b0C\\n\", h, m, temp);<\/pre>\n\n\n\n
Il est 14:05 et il fait 23.7\u00b0C<\/code><\/pre>\n\n\n\n
D\u00e9tails du formatage :<\/strong><\/h3>\n\n\n\n
    \n
  1. Heure (%02d<\/code>)<\/strong> :\n
      \n
    • %02d<\/code> formate le nombre sur 2 chiffres<\/strong>, en ajoutant un z\u00e9ro devant<\/strong> si n\u00e9cessaire.<\/li>\n\n\n\n
    • m = 5<\/code> \u2192 affich\u00e9 comme 05<\/code>.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
    • Minutes (%02d<\/code>)<\/strong> :\n
        \n
      • M\u00eame principe que pour l’heure.<\/li>\n\n\n\n
      • h = 14<\/code> \u2192 affich\u00e9 tel quel (d\u00e9j\u00e0 sur 2 chiffres).<\/li>\n<\/ul>\n<\/li>\n\n\n\n
      • Temp\u00e9rature (%.1f<\/code>)<\/strong> :\n
          \n
        • %.1f<\/code> arrondit le flottant \u00e0 1 d\u00e9cimale<\/strong>.<\/li>\n\n\n\n
        • temp = 23.7<\/code> \u2192 affich\u00e9 comme 23.7<\/code> (pas d’arrondi suppl\u00e9mentaire ici).<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n
          <\/p>\n<\/details>\n","protected":false},"excerpt":{"rendered":"
          Exercice 1: les bases Questions :1.1 Compl\u00e9ter avec %s pour afficher le nom1.2 Compl\u00e9ter avec %c pour l’initiale1.3 Compl\u00e9ter avec %d pour l’\u00e2ge en d\u00e9cimal1.4 Compl\u00e9ter avec %.2f pour la taille avec 2 d\u00e9cimales Questions :2.1 Afficher b avec %d (affiche 13)2.2 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_crdt_document":"","_uag_custom_page_level_css":"","footnotes":""},"class_list":["post-3565","page","type-page","status-publish","hentry"],"yoast_head":"\nexercices formats printf - workboot<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/workboot.fr\/ciela\/exercice-formats-printf\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"exercices formats printf - 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