如何删除具有自动增量的主键

Question

我尝试了两个代码来删除主键，这里发布了我的两个代码。请帮助我。

for(int i = min; i <= max; i++){
    int flag1 = 1, flag2 = 1;                 // This is the outer flag1
    for(int j = 0; j < a_size; j++){
        printf("In array a,value of %d mod %d is %d \n",i,a[j],i%a[j] );
        if((i % a[j]) != 0){
            int flag1 = 0;                    // This is the inner flag1
        //  The inner flag1 and the outer flag1 are different variables.
        //  The inner flag1 is set to zero, the outer flag1 is not changed.
            printf("flag1 set to 0. Check flag1 = %d\n",flag1);
            break;
        }
        // The brace ending the block ends the scope of the inner flag1.
        // From now on the name flag1 refers to the outer flag1.
    }