代码：

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
// to generate numbers
void gen_data(int b[], int n)
{
    int i;
    for (i = 0; i < n; i++)
        b[i] = rand() % 101;
}
// to display numbers
void disp_data(int b[], int n)
{
    int i;
    for (i = 0; i < n; i++)
        printf("%d \n", b[i]);
}
// insert at desired posn
void insert(int b[], int n, int elt, int pos)
{
    int i;
    for (i = n - 1; i >= pos; i--)
        b[i + 1] = b[i];
    b[pos] = elt;
}
// delete an elt at given position
void delete (int b[], int n, int pos)
{
    int i;
    for (i = pos + 1; i < n; i++)
        b[i - 1] = b[i];
}
// driver code
int main()
{
    int a[100], pos, n = 10, let;
    int opt;
    system("cls");
    gen_data(a, n);
    while (1)
    {
        printf("\n 1- Insert 2-Delete 3-Display 4-quit\n");
        scanf("%d %d", &pos, &elt);
        insert(a, n, elt, pos);
        n++;
        break;
        case 2:
            printf("enter position at which elt to be deleted: ");
            scanf("%d", &pos);
            delete (a, n, pos);
            n--;
            break;
        case 3:
            printf("the numbers are : \n");
            disp_data(a, n);
            break;
    }
    if (opt == 4)
        break;
} // end while
}

记录档：

Active debugger config: GDB/CDB debugger:Default
Building to ensure sources are up-to-date
Selecting target: 
Debug
Adding source dir: C:\Users\Ranju\Desktop\you\lab pro\
Adding source dir: C:\Users\Ranju\Desktop\you\lab pro\
Adding file: C:\Users\Ranju\Desktop\you\lab pro\bin\Debug\lab pro.exe
Changing directory to: "C:/Users/Ranju/Desktop/you/lab pro/."
Set variable: PATH=.;C:\MinGW\bin;C:\MinGW;C:\Windows\System32;C:\Windows;C:\Windows\System32\wbem;C:\Windows\System32\WindowsPowerShell\v1.0;C:\Windows\System32\OpenSSH;C;C:\Users\Ranju\AppData\Local\Microsoft\WindowsApps;C:\Program Files\CodeBlocks\MinGW\bin
Starting debugger: C:\Program Files\CodeBlocks\MINGW\bin\gdb.exe -nx -fullname -quiet  -args "C:/Users/Ranju/Desktop/you/lab pro/bin/Debug/lab pro.exe"
done
Setting breakpoints
Debugger name and version: GNU gdb (GDB) 8.1
Starting the debuggee failed: No executable specified, use `target exec'.
Debugger finished with status 0