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  1. #include<iostream>
  2. #include<string>
  3. #include<cstdlib>
  4. #include<cmath>
  5.  
  6. using namespace std;
  7. int main() {
  8.  
  9.     string str, st;
  10.  
  11.     int index = 0, k = 0, ind = 0, index1 = 0,s = 0;
  12.     long double  res = 0;
  13.  
  14.     char chr;
  15.     getline(cin, str);
  16.  
  17.     while (index < str.length())
  18.     {
  19.         chr = str[index];
  20.         if((str[index] >= '0') && (str[index] <= '9'))
  21.         {
  22.             st += str[index];
  23.         } 
  24.         else if(!st.empty())
  25.         {
  26.             k = atoi(st.c_str()); cout<<"k="<<k<<" ";
  27.             res = res + k*pow(0.5, s); cout<<"res"<<res<<endl;    
  28.             st = "";
  29.         }
  30.         if(chr == '(')
  31.         {
  32.             s = s + 1;
  33.         }
  34.         if (chr == ')')
  35.         {
  36.             s = s - 1;
  37.         }
  38.         index++;
  39.     }
  40.     cout << round(res * 100) / 100.;
  41. }
Success #stdin #stdout 0s 3480KB
comments (?)
stdin
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(12 13(14 15))
stdout
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k=12 res6
k=13 res12.5
k=14 res16
k=15 res19.75
19.75
https://ideone.com/XdNwhF
language:
C++ (gcc 8.3)
created:
9 years ago
visibility:
public

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