求高于平均分的学生学号及成绩（学号和成绩人工输入）
double find(int total, int n) {
???? int number, score,? average;
???? scanf(”%d”, &number);
???? if(number != 0) {
???????? scanf(”%d”, &score);
???????? average = find(total+score, n+1);
???????? if(score >= average)
????????????? printf(”%d:%d\n”, number, score);
???????? return average;
???? } else {
???????? printf(”Average=%d\n”, total/n);
???????? return total/n;
???? }
}
int main(int argc, char* argv[]) {
???? find(0, 0);
}