Doing a practice 12) write three statements to print the first three elements of vector runtimes. follow each with a newline. ex: if runtime = {800, 775, 790, 805, 808}, print: 800 775 790 #include #include using namespace std; int main() { vector runtimes(5); // populate vector runtimes. at(0) = 800; runtimes. at(1) = 775; runtimes. at(2) = 790; runtimes. at(3) = 805; runtimes. at(4) = 808; /* your solution goes here */ return 0; } 13) write a for loop to print all num_vals elements of vector coursegrades, following each with a space (including the last). print forwards, then backwards. end with newline. ex: if coursegrades = {7, 9, 11, 10}, print: 7 9 11 10 10 11 9 7 hint: use two for loops. second loop starts with i = num_vals - 1. #include #include using namespace std; int main() { const int num_vals = 4; vector coursegrades(