Program #32 (U3): Iterate Array via Pointer Arithmetic (find max & index)
Task: Use a pointer to traverse the array and find the maximum value and its index. Print both.
#include <stdio.h>
int main(void) {
int N, a[200];
printf("Enter N (1..200): ");
if(scanf("%d", &N) != 1 || N <= 0 || N > 200){ printf("Invalid N.\n"); return 0; }
printf("Enter %d integers: ", N);
for(int i=0;i<N;++i) scanf("%d", &a[i]);
int *p = a, *end = a + N;
int max = *p, idx = 0, i=0;
for(; p < end; ++p, ++i){ if(*p > max){ max=*p; idx=i; } }
printf("Max=%d at index %d\n", max, idx);
return 0;
}