in C programing

please in GDB as simlpe as possible

2.18) Write a program to print where a number of lines should be taken from the keyboard. Q.24) Using Function, Write a program to print No one is perfect - that's why pencils have erasers. 23) Below is the list of marks obtained by a class of 50 students in an annual examination. 4365512779115661820925360749556374814937404916758791332458786556766745543663122173495119394968938559 Write a C program to count the number of students belonging to each of the following groups of marks: 09,1019,2029,.,100