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~cpp #include <iostream> using namespace std; int main() { int score[10]={0,},i,n,a,b,c,d,f; a=0; b=0; c=0; d=0; f=0; cout <<" 10 \n"; while (n != 999){ cout << " \n"; cin >> n; cout <<" 999"; switch(n/10) { case 9: a++; break; case 8: b++; break; case 7: c++; break; case 6: d++; break; default: f++; break; } } cout <<"A="<<a<<endl; cout <<"B="<<b<<endl; cout <<"C="<<c<<endl; cout <<"D="<<d<<endl; cout <<"F="<<f<<endl; return 0; }