This is my code!!!
#include<iostream>
#include<string>
using namespace std;
int main() {
 char s;
 int count = 0;
 while (cin >> s) {
    if ((s=='a')||
        (s=='d')||
        (s=='g')||
        (s=='j')||
        (s=='m')||
        (s=='p')||
        (s=='s')||
        (s=='v')||
        (s=='y')||
        (s=='.')||
        (s==' ')) {count+=1;}
    if ((s=='b')||
        (s=='e')||
        (s=='h')||
        (s=='k')||
        (s=='n')||
        (s=='q')||
        (s=='t')||
        (s=='w')||
        (s=='z')||
        (s==',')) {count+=2;}
    if ((s=='c')||
        (s=='f')||
        (s=='i')||
        (s=='l')||
        (s=='o')||
        (s=='r')||
        (s=='u')||
        (s=='x')||
        (s=='!')) {count+=3;}
 }
 cout << count;
system("pause");
 return 0;
}

Possibly this part (s==' '))

If anyone is confused about this, note that cin ignores spaces. You should read the line as a whole with getline.

string s;
getline(cin, s);