C program, Modify the existing vector's contents, by erasing 200, then inserting 100 and 102 in the shown locations. Use Vector ADT's erase() and insert() only. Sample output of below program:

100 101 102 103 

#include #include

// struct and typedef declaration for Vector ADT typedef struct vector_struct { int* elements; unsigned int size; } vector;

// Initialize vector with specified size void vector_create(vector* v, unsigned int vectorSize) { int i;

if (v == NULL) return;

v->elements = (int*)malloc(vectorSize * sizeof(int)); v->size = vectorSize; for (i = 0; i < v->size; ++i) { v->elements[i] = 0; } } // Resize the size of the vector void vector_resize(vector* v, unsigned int vectorSize) { int oldSize; int i; if (v == NULL) return;

oldSize = v->size; v->elements = (int*)realloc(v->elements, vectorSize * sizeof(int)); v->size = vectorSize; for (i = oldSize; i < v->size; ++i) { v->elements[i] = 0; } } // Return pointer to element at specified index int* vector_at(vector* v, unsigned int index) { if (v == NULL || index >= v->size) return NULL;

return &(v->elements[index]); } // Insert new value at specified index void vector_insert(vector* v, unsigned int index, int value) { int i;

if (v == NULL || index > v->size) return;

vector_resize(v, v->size + 1); for (i = v->size - 1; i > index; --i) { v->elements[i] = v->elements[i-1]; } v->elements[index] = value; } // Insert new value at end of vector void vector_push_back(vector* v, int value) { vector_insert(v, v->size, value); } // Erase (remove) value at specified index void vector_erase(vector* v, unsigned int index) { int i;

if (v == NULL || index >= v->size) return;

for (i = index; i < v->size - 1; ++i) { v->elements[i] = v->elements[i+1]; } vector_resize(v, v->size - 1); } // Return number of elements within vector int vector_size(vector* v) { if (v == NULL) return -1;

return v->size; }

void PrintVectors(vector* numberList) { int i; for (i = 0; i < vector_size(numberList); ++i) { printf("%d ", *vector_at(numberList, i)); } printf(" "); }

int main(void) { vector numberList; vector_create(&numberList, 0);

// Populate vector with 101 200 103 vector_push_back(&numberList, 101); vector_push_back(&numberList, 200); vector_push_back(&numberList, 103);

// Erase 200 then insert 100 and 102

/* Your solution goes here */

PrintVectors(&numberList);

return 0; }