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#include <stdio.h> int recherche_iter(int* arr, int n, int v) { int i; for (i = 0; arr[i] != v && i < n; i++); if (i == n) return -1; return i; } int main() { int arr[] = {1, 2, 3}; printf("%d\n", recherche_iter(arr, 3, 4)); return 0; }