find min and delete(as index as well as element)

#include<stdio.h>
#include<time.h>
#include<stdlib.h>


void selector(int optn,int size,int* arr);
void findMin(int* arr,int size);
void deleteElement(int size,int* arr);
int* populateArray(int size); // return type pointer
void printArray(int* arr,int size);

int main(){

    int bool=0;
    do{
        int size=0,first=0,choice=0;
        int* arr;

        printf("\n\n\nenter array size: ");
        scanf("%d",&size);

        arr=populateArray(size); //returns the starting position of array
        printArray(arr,size);   // displays the array on screen

        do{
            printf("\n\naction to perform: 1.find minimum 2.delete an element\nenter choice:");
            scanf("%d",&choice);
            selector(choice,size,arr);

            printf("iterate again?\n (1)Yes, with existing array \n (2)Yes, with new array \n (0)no\nenter choice: ");
            scanf("%d",&bool);
        }while(bool==1);

    }while(bool==2);

    return 0;
}



int* populateArray(int size){
    int i=0;
    int* arr;

    arr=(int*)malloc(sizeof(int)*size);

    srand(time(NULL)); //creates seed for rand() by taking system exec time
    for(i=0;i<size;i++){
        *(arr+i)=(rand()%1000); // populates array with integers 0-999
    }
    return arr;
}

void printArray(int* arr,int size){

    int i;
    for(i=0;i<size;i++)
    printf("%d ",*(arr+i));
    puts("\n");
}

void selector(int optn,int size,int* arr){
    puts("\nin selector\n");
    if(optn==1){
        printf("you seslected findMin\n");
        findMin(arr,size);
    }
    else if(optn==2){
        printf("you selected deleteElement\n");
        deleteElement(size,arr);

    }
}

void findMin(int* arr,int size){
    puts("\nfinding Min...");
    int min,loc,i;

    min=*(arr+0);
    for(i=1;i<size;i++){
        if(*(arr+i)<min){
            min=*(arr+i);
            loc=i;
        }
    }
    printf("min value:%3d found at %3d\n\n",min,(loc+1));
}

void deleteElement(int size,int* arr){

    int bool=0;
    do{

        int Elem=0,optn=0,i=0,loc;

        printf("1.delete index or 2.delete element? enter choice: ");
        scanf("%d",&optn);
        switch(optn){
            case 1:
                printf("enter position to delete: ");
                scanf("%d",&Elem);

                if(Elem==size){
                    size--;
                }
                else{
                    for(i=(Elem-1);i<size;i++){
                        *(arr+i)=*(arr+(i+1));
                    }
                    size--;
                }

                printf("\narray after deletion: ");
                printArray(arr,size); // size is reduced by 1 after deletion
                break;

            case 2:
                printf("enter element to delete: ");
                scanf("%d",&Elem);

                for(i=0;i<size;i++){
                    if(*(arr+i)==Elem){
                        loc=i;
                        break;
                    }
                }
                if(loc==(size-1)){
                    size--;
                }
                else {
                    for(i=loc;i<size;i++){
                        *(arr+i)=*(arr+(i+1));
                    }
                    size--;
                }
                printf("\narray after deletion: ");
                printArray(arr,size); // size is reduced by 1 after deletion
                break;
        }

        printf("delete another? (1)yes or (0)no\nenter choice: ");
        scanf("%d",&bool);
    }while(bool==1);

}