c語言PTA7-14 函數編程-分段函數 (15分)

#include<stdio.h> #include<math.h> int main() { double hanshu(double a); double x; scanf("%lf",&x); double y; int a=0; if(x<=-2){ y=-exp(2x+1)+3; a=1; } if(x>3){ y=hanshu(x); a=1; } if(a==0)printf(「y=

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