Q3#A /list two ways to rewrite the following code with Code Optimization Methods (Redundant instruction elimination)? Int add ten(int X) { Int Y, Z, Y= 10; Z=X+Y; Return z; }

Please take screenshots of the program

please help solve this code using c++ arrays and pointers, and incorporate the following code: for (int i = 0 ; i < course ; i++) { // tell user which course is at cout << "Course "<< i+1 << endl ; // make pointer point to row arr[i] = new float [i+1] ; and then record assignment marks adding to the total for (int j = 0 ; j < entry ; j++) { // prompt for each course's entry cout << "Enter entry " <<j+1<< ": " ; cin >> score ; // store the score to each row arr[i][j] = score ; courseTol += score; }

C Programming What does the below code segment do? #define RECORD_LENGTH 60 /* PORTFOLIO.DAT looks like the below: ibm 108.77 27.98 att 111.43 50 acdc 100 30 */   void main(void) { FILE *fptr; char stock_price_shares[RECORD_LENGTH + 1]; int i=0, count=0; // attempt to open PORTFOLIO.DAT for reading   if ((fptr = fopen("PORTFOLIO.DAT", "r")) == NULL) printf("\nCannot open the file: PORTFOLIO.DAT\n"); else { while ( fgets(stock_price_shares, RECORD_LENGTH + 1, fptr) != NULL ) printf("\n%s", stock_price_shares); fclose(fptr); //close the file }   printf("\nHow many new records for PORTFOLIO.DAT?"); scanf("%d ", &count); fptr = fopen("PORTFOLIO. DAT", "w"); /* writing */ for (i = 0; i < count; ++i) { gets(stock_price_shares); fputs(stock_price_shares, fptr); fclose(fptr); } }