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2 years ago
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#include <stdio.h> double f4(int n) { double x; if (n == 0) { return 0; } scanf("%lf", &x); if (n % 2 == 0) { return x + f4(n-1); } else { return f4(n-1); } } int main() { int n; printf("Enter the number of values:\n"); scanf("%d", &n); printf("Enter %d real numbers:\n", n); double sum = f4(n); printf("Sum of even positions: %.1lf\n", sum); return 0; }
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