无算法，但有些麻烦

#include 
      
        #include 
       
         #include 
        
          #include 
         
           using namespace std; #define maxl 100 #define eps 10E-9 char st[maxl]; char unit; double fat; double tot; void input() {
     int temp; char ch;     sscanf(st, "%d%c", &temp, &ch); bool percent; int p = 0; int c = 0; if (ch == '%')     {
             percent = true;         p += temp;     } else if (ch == 'g')     {
             percent = false;         c += temp * 9;         fat += temp * 9;     } else     {
             percent = false;         c += temp;         fat += temp;     } int f[4] =     { 4, 4, 4, 7 }; for (int i = 0; i < 4; i++)     {
     int a;         scanf("%d%c", &a, &ch); if (ch == '%')             p += a; else if (ch == 'g')             c += a * f[i]; else             c += a;     }     tot += c / (100.0 - p) * 100; if (percent)         fat += c / (100.0 - p) * temp; } int main() {
     //freopen("t.txt", "r", stdin);     while (scanf("%s", st), strcmp(st, "-"))     {
             fat = 0;         tot = 0; do         {
                 input();         } while (scanf("%s", st), strcmp(st, "-"));         printf("%d%%\n", (int)(fat  * 100 / tot + 0.5 + eps));     } return 0; }