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最佳答案：void fangcheng(double a,double b,double c){double x1,x2;double delta=b^2-4*a*c;i
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最佳答案：includeincludeddouble fun(int a ,int b,int c){int p;p=(a+b+c)/2;return sqrt(p*(p
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最佳答案：第一题：#include#include#define STUDENT_NUM 2 //学生数量，修改成10即可#define COURSE_NUM 5 //课
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最佳答案：int fun(int n){double sum = 0.0;int k = 1;for(int i = 1; i
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最佳答案：#includeint gcd(int a, int b){int t;while(b > 0){a %= b;t = b;b = a;a = t;}retur