how to initialise and assign vlaue element by element to array dynamically

Question

I want to assign values to a dynamic array element by element in C++. I use the code below to assign values

int *missedlst;
for(int i=0;i<10;i++){
missedlst = new int;
missedlst[i] = i;
}

If I print the values, only the last one is correctly shown. The remaining values are not: the program shows some garbage value. Please help me in assigning the values element by element in a loop.

Answer 1

You're code is doing exactly what you tell it to

int *missedlst;          // New pointer
for(int i=0;i<10;i++){   // Loop 10 times
    missedlst = new int; // Change what the pointer points to
    missedlst[i] = i;    // This makes no sense, you don't have an array
}

What you want is to create a new integer array, and then assign the values.

int size = 10;                   // A size that is easily changed.
int* missedList = new int[size]; // New array of size size
for(int i = 0; i < size; ++i){   // loop size times
    missedList[i] = i;           // Assign the values
}

// Do stuff with your missedList

// Delete the object.
delete[] missedList;