#include <stdio.h> #include <stdlib.h> #include <math.h> int main() { int t; float x,y; scanf("%f",&x); t=(x<2)+(x<6)+(x<10); switch(t) { case 3:y=x;break; case 2:y=x*x+1;break; case 1:y=sqrt(x+1);break; case 0:y=1/(x+1);break; } printf("%f",y); return 0; }
#include <stdio.h> #include <stdlib.h>
int main() { int c,s; float p,w,d,f; printf("please enter p,w,s:"); scanf("%f%f%d",&p,&w,&s); if (s>=3000) c=12; else c=s/250; switch(c) { case 0:d=0;break; case 1:d=2;break; case 2: case 3:d=5;break; case 4: case 5: case 6: case 7:d=8;break; case 8: case 9: case 10: case 11:d=10;break; case 12:d=15;break; } f=p*w*s*(1-d/100.0); printf("freight=%.2f\n",f); return 0; }
#include <stdio.h> #include <stdlib.h>
int main() { int x,y; scanf("%d",&x); y=(x>0)?x:-x; printf("%d",y); return 0; } #include <stdio.h> #include <stdlib.h>
int main() { double x; scanf("%lf",&x); printf("%lf",(x>0)?x:-x); return 0; }
