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#include<stdlib.h> #include<stdio.h> #include<time.h> //#include<conio.h> #define A -20 #define B 20 int main() { double *a, sum; int i, n, size; srand(time(NULL)); //scanf("%d", &size); size = 10; a = (double *)malloc(size*sizeof(*a)); for (sum = i = 0; i < size; i++) { a[i] = (1.0*(rand()%(B-A+1)) + A) / (1.0*(B - A)); printf("%.2f ", a[i]); if (a[i] > 0) sum += a[i]; } printf("\n sum = %.2f\n", sum); getchar(); return 0; }
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