33 lines
648 B
C
33 lines
648 B
C
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#include<stdio.h>
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#include<stdlib.h>
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int main(int argc, char * argv[]) {
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printf("Veuillez donner un entier naturel : ");
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int entier, result;
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result = scanf("%d", &entier);
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if (entier < 0) {
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printf("L'entier doit être supérieur ou égal à 0.\n");
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return EXIT_FAILURE;
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}
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if (result == 1) {
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int remainder = entier % 3;
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int triple;
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if (remainder == 0) {
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triple = entier;
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} else if (remainder == 1) {
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triple = entier - 1;
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} else {
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triple = entier + 1;
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}
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printf("Le multiple de trois le plus proche est %d.\n", triple);
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} else {
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printf("Format invalide.\n");
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return EXIT_FAILURE;
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}
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return EXIT_SUCCESS;
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}
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