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  1. #include<stdio.h>
  2. #include<stdlib.h>
  3. #include<string.h>
  4. #include<ctype.h>
  5. //#define max(x,y)  (((int)((x)<(y)) * (y)) + ((int)((y)<=(x)) * (x)))
  6. struct stack
  7. {
  8.   char ar[410];
  9.   int top;
  10. };
  11. int pop(struct stack *s);
  12. void push(struct stack *s,char temp);
  13. long int mass=0;
  14. int main()
  15. {
  16.   struct stack *s=(struct stack*)malloc(sizeof(struct stack));
  17.   int t,n,i,cmass;
  18.     i=0;
  19.     s->top=-1;
  20.     char str[410];
  21.     gets(str);
  22.     while(str[i]!='\0')
  23.     {
  24.       if(str[i]!=')')
  25.       push(s,str[i]);
  26.       else
  27.       {
  28.         cmass=pop(s);
  29.         if((s->top!=-1 && (isdigit(str[i+1]) && cmass!=0)))
  30.         {
  31.           mass=mass+(cmass*((str[i+1]-'0')-1));
  32.           i++;
  33.         }
  34.         else if(isdigit(str[i+1]) && cmass==0)
  35.         {
  36.           mass=mass*(str[i+1]-'0');
  37.           i++;
  38.         }
  39.         else if((s->top==-1 && (isdigit(str[i+1]) && cmass!=0)))
  40.         {
  41.           mass=mass*(str[i+1]-'0');
  42.           i++;
  43.         }
  44.       }
  45.       i++;
  46.   }
  47.   char temp;
  48.   int flag=0;
  49.   int val;
  50.   cmass=0;
  51.   while(s->top!=-1)
  52.   {
  53.  
  54.     temp=s->ar[s->top];
  55.     if(isdigit(temp))
  56.     {
  57.     flag=1;
  58.     val=temp-'0';
  59.     }
  60.     else if(temp=='C' && flag==1)
  61.     {
  62.       cmass=cmass+(12*(val));
  63.       flag=0;
  64.     }
  65.     else if(temp=='C')
  66.       cmass=cmass+12;
  67.       else if(temp=='O' && flag==1)
  68.       {
  69.         cmass=cmass+(16*(val));
  70.         flag=0;
  71.       }
  72.       else if(temp=='H' && flag==1)
  73.       {
  74.         cmass=cmass+(1*(val));
  75.         flag=0;
  76.       }
  77.       else if(temp=='O')
  78.         cmass=cmass+16;
  79.         else if(temp=='H')
  80.           cmass=cmass+1;
  81.     s->top--;
  82.   }
  83.   mass=mass+cmass;
  84.   printf("%ld\n",mass);
  85.   return 0;
  86. }
  87. void push(struct stack *s,char temp)
  88. {
  89.   s->ar[++s->top]=temp;
  90. }
  91. int pop(struct stack *s)
  92. {
  93.   char temp;
  94.   int flag=0;
  95.   int val;
  96.   int cmass=0;
  97.   while(s->top!=-1 && s->ar[s->top]!='(')
  98.   {
  99.     temp=s->ar[s->top];
  100.     if(isdigit(temp))
  101.     {
  102.     flag=1;
  103.     val=temp-'0';
  104.     }
  105.     else if(temp=='C' && flag==1)
  106.     {
  107.       cmass=cmass+(12*(val));
  108.       flag=0;
  109.     }
  110.     else if(temp=='C')
  111.       cmass=cmass+12;
  112.       else if(temp=='O' && flag==1)
  113.       {
  114.         cmass=cmass+(16*(val));
  115.         flag=0;
  116.       }
  117.       else if(temp=='H' && flag==1)
  118.       {
  119.         cmass=cmass+(1*(val));
  120.         flag=0;
  121.       }
  122.       else if(temp=='O')
  123.         cmass=cmass+16;
  124.         else if(temp=='H')
  125.           cmass=cmass+1;
  126.     s->top--;
  127.   }
  128.   if(s->ar[s->top]=='(')
  129.   s->top--;
  130.   mass=mass+cmass;
  131.   return cmass;
  132. }
  133.  
Success #stdin #stdout 0s 4256KB
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https://ideone.com/8RJb49
language:
C (gcc 8.3)
created:
5 years ago
visibility:
public

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