#include<bits/stdc++.h>
#include<stdlib.h>

using namespace std;

typedef struct // Naming for student
{
    char fastName[50];
    char lastName[50];

} nametype;

typedef struct
{
    char ID[150];
    char grade[150];
    nametype name;

} studentInfo;

studentInfo student[100];

int marks[500];

void gradeFunc(studentInfo *s, int mark)
{
    if(mark >= 80)
    {
        strcpy(s -> grade,"A+");
    }
    else if(mark >= 70)
    {
        strcpy(s -> grade,"A");
    }
    else if(mark >= 60)
    {
        strcpy(s -> grade,"A-");
    }
    else if(mark >= 50)
    {
        strcpy(s -> grade,"B");
    }
    else if(mark >= 40)
    {
        strcpy(s -> grade, "C");
    }
    else
    {
        strcpy(s -> grade,"F");
    }
}

void printfStudentInfo()
{
     cout<<endl;
    printf("**************************Result Board**************************\n\n");
    printf("Sl.\tName\t\t\tID\t\tGrade\t\t\n\n");
    for(int i=0; i<2; i++)
    {
        printf("%d.\t%s %s\t\t\t%s\t\t\%s\n",i+1,student[i].name.fastName,student[i].name.lastName,student[i].ID,student[i].grade);
    }

    cout<<endl<<endl;
}


void takeIn(int n)
{
    for(int i=0; i<n; i++)
    {
        printf("Enter the first name for the student %d: ",i+1);
        scanf(" %[^\n]",&student[i].name.fastName);

        printf("Enter the last name for the student %d: ",i+1);
        scanf(" %[^\n]",&student[i].name.lastName);

        printf("Enter the ID for student %d: ",i+1);
        scanf(" %[^\n]",&student[i].ID);
        getchar();

        printf("Enter the grade for the student %d: ",i+1);
        scanf("%d",&marks[i]);
        cout<<endl;
    }

    for(int j=0; j<2; j++)
    {
        gradeFunc(&student[j],marks[j]);
    }
}

int main()
{
    int n_students;
    printf("How many students: ");
    scanf("%d",&n_students);

    takeIn(n_students);
    printfStudentInfo();


    return 0;
}