UVA 537-artificial Intelligence?

#include <iostream> #include <cctype> #include <cmath> #include <cstring> #include <    Algorithm>using namespace Std;int main () {int T, k = 1;    Double U, I, P;    Cin >> T;    Cin.ignore ();    string S;        while (t--) {cout << "problem #" << k++ << Endl;        Getline (cin,s);        U = I = P =-1;        int i,j;  for (i = 0; i < s.length (); i++) {if (s[i] = = ' = ') {//judgment = number, to data area double num =                0,temp = 0;                for (j = i + 1; isdigit (S[j]); j + +)//num computes integer part num = num*10 + s[j]-' 0 '; if (s[j] = = '. ')                    {//If there are decimals, then temp computes int ct = 0;                for (j = j +1; IsDigit (S[j]); j + +) Temp + = (s[j]-' 0 ') *pow (10.0,-(++CT));                } num + = temp;                if (s[j] = = ' m ')//judging unit num/= 1000; else if (s[j] = = ' k ') num *= 1000;                else if (s[j] = = ' M ') num *= 1000000;                if (s[i-1] = = ' U ') u = num;                else if (s[i-1] = = ' I ') i = num;            else if (s[i-1] = = ' P ') p = num;        }} if (P = =-1) printf ("p=%.2fw\n", u*i);        else if (U = =-1) printf ("u=%.2fv\n", p/i);        else printf ("i=%.2fa\n", p/u);    cout << Endl; } return 0;}

UVA 537-artificial Intelligence?