A masala uchun yechim:

#include <iostream>
using namespace std;

int main() {
    int a;
    cin >> a;

    if (a >= 0 && a <= 1600) {
        cout << "Pupil" << endl;
    } else if (a >= 1600 && a <= 1699) {
        cout << "Specialist" << endl;
    } else if (a >= 1700 && a <= 1799) {
        cout << "Expert" << endl;
    } else if (a >= 1800 && a <= 1999) {
        cout << "Candidate Master" << endl;
    } else if (a >= 2000 && a <= 2199) {
        cout << "Master" << endl;
    } else if (a >= 2200 && a <= 2399) {
        cout << "International Master" << endl;
    } else if (a >= 2400 && a <= 2699) {
        cout << "Grandmaster" << endl;
    } else if (a >= 2700 && a <= 2999) {
        cout << "International GrandMaster" << endl;
    } else if (a >= 3000) {
        cout << "Legendary Grandmaster" << endl;}
    return 0;
}

B masala uchun yechim:

#include<iostream>
using namespace std;
int main(){
    int x1,y1,x2,y2;
    cin>>x1>>y1>>x2>>y2;
    if(x1==x2 || y1==y2 ) cout<<"YES";
    else cout<<"NO";
}

c masala uchun yechim:

#include<iostream>
using namespace std;
int main(){
    string r,y,g;
    cin>>r>>y>>g;
    if(r=="black" && y=="black" && g=="green"){
        cout<<"black"<<endl<<"black"<<endl<<"GREEN";
    }
    else if(r=="black" && y=="black" && g=="GREEN"){
        cout<<"black"<<endl<<"yellow"<<endl<<"black";
    }
    else if(r=="black" && y=="yellow" && g=="black"){
        cout<<"red"<<endl<<"black"<<endl<<"black";
    }
    else if(r=="red" && y=="black" && g=="black"){
        cout<<"red"<<endl<<"yellow"<<endl<<"black";
    }
    else if(r=="red" && y=="yellow" && g=="black"){
        cout<<"black"<<endl<<"black"<<endl<<"green";
    }
    else if (r=="black" && y=="YELLOW" && g=="black"){
        cout<<"black"<<endl<<"YELLOW"<<endl<<"black";
    }
    else {
        cout<<"error";
    }
}

D masala uchun yechim:

#include<iostream>
using namespace std;
int main(){
  int cnt=0;
  int n;
  cin>>n;
    for(int d=0;d<10;d++){
      if((1*1000+2*100+d*10+3)%n==0){
        cnt++;
    }
  }
    cout<<cnt;
}

E masala uchun yechim:

#include<iostream>
using namespace std;
int main(){
  int n;
  cin>>n;
  if(n>25){
    cout<<"25";
  }
  else{
    cout<<n;
  }
}

F masala uchun yechim:

#include<iostream>
using namespace std;
int main(){
  int c5,c6,c7,c8,c9,c10,c11;
  cin>>c5;
  cin>>c6;
  cin>>c7;
  cin>>c8;
  cin>>c9;
  cin>>c10;
  cin>>c11;
  if(c5+c6+c7+c8+c9>c10+c11){
    cout<<"5-9";
  }
  else if(c5+c6+c7+c8+c9==c10+c11){
    cout<<"=";
  }
  else{
    cout<<"10-11";
  }
}