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请过的大侠,帮一下。。怎么就出错了呢 ?? #include<stdio.h> void main() { float a[3002],c[3002],equa; int num,i,x[3002]; scanf("%d",&num); scanf("%f%f",&a[0],&equa); for(i=1;i<=num;i++) scanf("%f",&c[i]); a[1]=0; x[1]=1; x[0]=0; for(i=2;i<=num+1;i++) { a[i]=2*a[i-1]+2*c[i-1]-a[i-2]; x[i]=2*x[i-1]-x[i-2]; } printf("%.2f\n",(equa-a[num+1])/x[num+1]); } Followed by:
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