I have true answers on all tests with this forum, but have WA#9! Help me!
This is my code:

#include <iostream>

using namespace std;

int main()
{
    char str[201];
    int c = 0;
    int cmax = 0;
    int index = 0;
    const char S[7] = {'S','a','n','d','r','o','\n'};
    gets(str);
    for(int i=0;i<strlen(str)-5;i++)
    {
        if(str[i]=='S') c+=2;
        if(str[i]=='s') c++;
        if(str[i+1]=='a') c+=2;
        if(str[i+1]=='A') c++;
        if(str[i+2]=='n') c+=2;
        if(str[i+2]=='N') c++;
        if(str[i+3]=='d') c+=2;
        if(str[i+3]=='D') c++;
        if(str[i+4]=='r') c+=2;
        if(str[i+4]=='R') c++;
        if(str[i+5]=='o') c+=2;
        if(str[i+5]=='O') c++;

        if(c>cmax)
        {
            cmax = c;
            index = i;
        }
    }
        c = 0;
        if((str[index]=='s')||((int(str[index])<=90)&&(str[index]!='S'))) c++;
        else if(str[index]!='S') c+=2;

        if((str[index+1]=='A')||((int(str[index+1])>90)&&(str[index+1]!='a'))) c++;
        else if(str[index+1]!='a') c+=2;

        if((str[index+2]=='N')||((int(str[index+2])>90)&&(str[index+2]!='n'))) c++;
        else if(str[index+2]!='n') c+=2;

        if((str[index+3]=='D')||((int(str[index+3])>90)&&(str[index+3]!='d'))) c++;
        else if(str[index+3]!='d') c+=2;

        if((str[index+4]=='R')||((int(str[index+4])>90)&&(str[index+4]!='r'))) c++;
        else if(str[index+4]!='r') c+=2;

        if((str[index+5]=='O')||((int(str[index+5])>90)&&(str[index+5]!='o'))) c++;
        else if(str[index+5]!='o') c+=2;
        cout<<c*5<<endl;
    return 0;
}

Try the test:
sssssssssssssssssssssssssssssssssssssssssssssssaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaannnnnnnnnnnnnnnnnnnnnnnnnndroooooooooooooo
Your program's answer is 30.
The right answer is 15.
(
1.sssssssssssssssssssssssssssssssssssssssssssssssaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaannnnnnnnnnnnnnnnnnnnnnnsnndroooooooooooooo
2.sssssssssssssssssssssssssssssssssssssssssssssssaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaannnnnnnnnnnnnnnnnnnnnnnsandroooooooooooooo
3.sssssssssssssssssssssssssssssssssssssssssssssssaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaannnnnnnnnnnnnnnnnnnnnnnSandroooooooooooooo
)
The wierd thing is that for "mmndro" the answer is right. :D

I got the bug. In the first for, your c is always increasing, so your cmax will be wrong. Put "c=0" before to close the for.
It should work perfect now.

Thanks!