C++ programme using nested if_else structure

value and then print it on the screell Dy Write a program in C++ to input marks obtained by a student in a. Q8 Wnte a p subject. The total marks are 100. Find out the grade of the student by using the if-else nested structure. The grade is: If marks are equal to or gre ter than 90. grade is "A+". If'marks are cqual to or gr ater than 70 and less than 90. grade is "A" Ir marks are equal to or grcater than 50 and less than 70. grade is "B". If marks are less than 50. grade is F 0.9 Write a program in C+ to input a single character a dprint a