Conversions

 1 #include <stdio.h>
 2 #include <string.h>
 3 
 4 int main(){
 5     int T;
 6     double amount;
 7     char unit[3];
 8     double total;
 9     int time;
10 
11     time=1;
12 
13     scanf("%d",&T);
14 
15     while(T--){
16         scanf("%lf%s",&amount,unit);
17 
18         printf("%d ",time);
19         time++;
20 
21         if(strcmp(unit,"kg")==0){
22             total=amount*2.2046;
23 
24             printf("%.4lf lb\n",total);
25 
26         }
27 
28         else if(strcmp(unit,"lb")==0){
29             total=amount*0.4536;
30 
31             printf("%.4lf kg\n",total);
32         }
33 
34         else if(strcmp(unit,"l")==0){
35             total=amount*0.2642;
36 
37             printf("%.4lf g\n",total);
38         }
39 
40         else if(strcmp(unit,"g")==0){
41             total=amount*3.7854;
42 
43             printf("%.4lf l\n",total);
44         }
45     }
46     
47 
48     return 0;
49 }