University Management

#include<bits/stdc++.h>
using namespace std;

int main()
{
    cout<<"Enter How many students in the class :"<<endl;
    int n;
    cin>>n;

    string s[n];
    vector<pair<string,string>>v[100];
    vector<string>V;
    for(int i=0; i<n; i++)
    {
        cout<<"Enter students name :"<<endl;
        cin>>s[i];  ///Example : sagar
        cout<<"Enter how many course "<<i+1<<" student want to take "<<endl;
        int x;
        cin>>x;
        int count=0;
dd:
        while(count<x)
        {
            string time,date,name;
            cout<<"Enter course name, date and time"<<endl;///Example datacom 5/7/20 5:00PM
            cin>>name>>date>>time;

            for(int j=0; j<v[i].size(); j++)
            {

                if(v[i][j].first==date and v[i][j].second==time)
                {
                    cout<<"Conflict with time and date .Please enter again"<<endl;
                    goto dd;
                }
            }
            v[i].push_back(make_pair(date,time));
            V.push_back(name);
            count++;
        }

    }
    cout<<endl<<endl<<"Enter How many Teacher in the University :"<<endl;
    int n1;
    cin>>n1;
    string s1[n1];
    vector<pair<string,string>>v1[100];
    vector<string> V1;
    for(int i=0; i<n1; i++)
    {
        cout<<"Enter Teacher name :"<<endl;
        cin>>s1[i];
        cout<<"Enter how many course "<<i+1<<" Teacher want to take "<<endl;
        int x;
        cin>>x;
        int count=0;
dd1:
        while(count<x)
        {
            string name;
            string time,date;
            cout<<"Enter course name ,date and time"<<endl;///Example datacom 5/7/20 5:00PM
            cin>>name>>date>>time;

            for(int j=0; j<v1[i].size(); j++)
            {

                if(v1[i][j].first==date and v1[i][j].second==time)
                {
                    cout<<"Conflict with time and date .Please enter again"<<endl;
                    goto dd1;
                }
            }
            v1[i].push_back(make_pair(date,time));
            V1.push_back(name);
            count++;
        }

    }

    cout<<"Here are the details of student and course take bye them "<<endl<<endl<<endl;;



    for(int i=0; i<n; i++)
    {
        cout<<endl<<"Name of student is "<<s[i]<<endl<<endl;;

        cout<<"Course taken by him is "<<endl;

        for(int j=0; j<v[i].size(); j++)
        {
            cout<<"course name is "<<V[j]<<endl;
            cout<<"Course time and date are ";
            cout<<v[i][j].first<<" "<<v[i][j].second<<endl;
        }
    }

    cout<<endl<<endl<<"Here are the details of Teacher and course take bye them "<<endl<<endl<<endl;;



    for(int i=0; i<n1; i++)
    {
        cout<<endl<<"Name of Teacher is "<<s[i]<<endl<<endl;;

        cout<<"Course taken by him is "<<endl;

        for(int j=0; j<v1[i].size(); j++)
        {
            cout<<"course name is "<<V1[j]<<endl;
            cout<<"Course time and date are ";
            cout<<v1[i][j].first<<" "<<v1[i][j].second<<endl;
        }
    }



}