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00537.cpp
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00537.cpp
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#include <iostream>
#include<cstring>
#include<cstdio>
#include<cstdlib>
using namespace std;
double cutText(char *str,char unit)
{
double ans;
char intt[100],*p;
if(unit =='A')
p = strstr(str,"I=");
else if(unit=='V')
p = strstr(str,"U=");
else if(unit=='W')
p = strstr(str,"P=");
p+=2;
int i;
for(i=0; p[i]!='m'&&p[i]!='k'&&p[i]!='M'&&p[i]!=unit; i++)
{
intt[i] = p[i];
}
intt[i]='\0';
ans = atof(intt);
if(p[i]=='k')
{
ans*=1000;
}
else if(p[i]=='m')
{
ans/=1000;
}
else if(p[i]=='M')
{
ans*=1000000;
}
return ans;
}
int main()
{
//freopen("in.txt", "rt", stdin);
//freopen("out.txt", "w+t", stdout);
int t;
scanf("%d\n",&t);
char text[4096];
for(int kase = 1; kase<=t; kase++)
{
fgets(text,4096,stdin);
char *p;
printf("Problem #%d\n",kase);
if((p=strstr(text,"P="))==NULL)
{
double a,v;
a = cutText(text,'A');
v = cutText(text,'V');
printf("P=%.2fW\n",a*v);
}
else if((p=strstr(text,"U="))==NULL)
{
double a,w;
a = cutText(text,'A');
w = cutText(text,'W');
printf("U=%.2fV\n",w/a);
}
else if((p=strstr(text,"I="))==NULL)
{
double w,v;
w = cutText(text,'W');
v = cutText(text,'V');
printf("I=%.2fA\n",w/v);
}
cout<<endl;
}
return 0;
}