1072:找规律填数字

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#include<stdio.h>int main(){        float a,b,c,d,e,x,x1,x2,x3,x4,x5;        while(scanf("%f%f%f%f%f",&a,&b,&c,&d,&e)!=EOF&&a!=0&&b!=0&&c!=0&&d!=0&&e!=0)        {                if(b-a==c-b&&d-c==c-b&&e-d==d-c)                {                        x=b-a;                        x1=e+x;                        x2=x1+x;                        x3=x2+x;                        x4=x3+x;                        x5=x4+x;                        printf("%.f %.f %.f %.f %.f\n",x1,x2,x3,x4,x5);                }                if(b/a==c/b&&d/c==c/b&&e/d==d/c)                {                        x=b/a;                        x1=e*x;                        x2=x1*x;                        x3=x2*x;                        x4=x3*x;                        x5=x4*x;                        printf("%.f %.f %.f %.f %.f\n",x1,x2,x3,x4,x5);                }                if(c==a+b&&d==b+c&&e==c+d)                {                        x1=d+e;                        x2=e+x1;                        x3=x2+x1;                        x4=x3+x2;                        x5=x4+x3;                        printf("%.f %.f %.f %.f %.f\n",x1,x2,x3,x4,x5);                }        }        return 0;}