Flink基礎(三十):FLINK SQL(六)ALTER 語句
阿新 • • 發佈:2020-11-28
實驗一
# include<stdio.h> # include<math.h> void solve(double a,double b, double c) { double x1,x2; double delta,real,imag; if(a==0) printf("not quadratic equation.\n"); else{ delta =b*b-4*a*c; if(delta>=0){ x1=(-b+sqrt(delta))/(2*a); x2=(-b-sqrt(delta))/(2*a); printf("x1=%f,x2=%f\n",x1,x2); } else{ real=-b/(2*a); imag = sqrt(-delta)/(2*a); printf("x1=%f+%fi,x2=%f-%fi\n",real,imag,real,imag); } } } int main(){ double a,b,c; printf("Enter a,b,c: "); while(scanf("%lf%lf%lf",&a,&b,&c)!=EOF){ solve(a,b,c); printf("Enter a,b,c:"); } return 0; }
實驗二
# include<stdio.h> long long fac(int n){ static long long p=1; p=p*n; return p; } int main(){ int i,n; printf("enter n:"); scanf("%d",&n); for(i=1;i<=n;++i) printf("%d!=%11d\n",i,fac(i)); return0; }
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