Why I am facing issue in code 2 while using \n

#include <stdio.h>
#include <string.h>
struct employee{

    int code;
    float salary;
    char name[15];
};
int main()
{


    struct employee e1, e2, e3;
    printf("Enter the code  of employe\n");
    scanf("%d", &e1.code );
    printf("Enter the salary  of employe\n");
    scanf("%f", &e1.salary);
    printf("Enter the name of employe\n");
    scanf("%s", e1.name);

    printf("Enter the code  of employe\n");
    scanf("%d", &e2.code );
    printf("Enter the salary  of employe\n");
    scanf("%f", &e2.salary);
    printf("Enter the name of employe\n");
    scanf("%s", e2.name);

    printf("Enter the code of employe\n");
    scanf("%d", &e3.code);
    printf("Enter the of  salary of employe\n");
    scanf("%f", &e3.salary);
    printf("Enter the name of employe\n");
    scanf("%s", e3.name);

    return 0;
}

#include <stdio.h>
#include <string.h>
struct employee{

    int code;
    float salary;
    char name[15];
};
int main()
{


    struct employee e1, e2, e3;
    printf("Enter the code  of employe\n");
    scanf("%d\n", &e1.code );
    printf("Enter the salary  of employe\n");
    scanf("%f\n", &e1.salary);
    printf("Enter the name of employe\n");
    scanf("%s\n", e1.name);

    printf("Enter the code  of employe\n");
    scanf("%d\n", &e2.code );
    printf("Enter the salary  of employe\n");
    scanf("%f\n", &e2.salary);
    printf("Enter the name of employe\n");
    scanf("%s\n", e2.name);

    printf("Enter the code of employe\n");
    scanf("%d\n", &e3.code);
    printf("Enter the of  salary of employe\n");
    scanf("%f\n", &e3.salary);
    printf("Enter the name of employe\n");
    scanf("%s\n", e3.name);

    return 0;
}