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- #include<stdio.h>
- #include<ctype.h>
- int main()
- {
- char T[20] ;
- int n,i;
- printf("donner un entier");
- scanf("%d",&n);
- for(i=0;i<n;i++)
- {
- printf("donner T[%d]",i);
- scanf (" %c",&T[i]); // ghaltek hnee ta3mel espace %c khater akeka bech yekho valeur mta3 entré mta3 el clavier
- }
- for (i=0;i<n;i++)
- {
- if ((T[i]>='a')&&(T[i<='b']))
- T[i]=toupper(T[i]);
- else
- T[i]=tolower(T[i]);
- }
- for(i=0;i<n;i++)
- {
- printf("%c\t",T[i]);
- }
- return 0;
- }
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