Ответы на вопрос:
#include < stdlib.h> #include < stdio.h> int main() { int arr[40]; printf("arr: \n"); for(int i = 0; i < 40; i++) {arr[i] = rand()%21; printf("%d\n", arr[i] ) ; } int sred = 0; int n = 0; int sum1 = 0; int sum2 = 0; for(int i = 0; i < 40; i++) { if(arr[i]%2 ! = 0) {sred += arr[i]; n++} if(arr[i] < = 10) sum1 += arr[i]; if(arr[i]%3 == 0) sum2 += arr[i]; } printf("result: \n%f \n%d \n%d", (float)sred/n, sum1, sum2); return 0; }
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