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https://ittimepass.wordpress.com/2016/11/17/73write-a-program-in-c-to-input-roll-no-and-total-marks-from-an-input-file-of-10-student-name-of-input-file-is-marks-txt-write-roll-no-and-total-marks-of-only-those-student-two-an-output-file-wh/
73) Write a program in C++ to input roll no and total marks from an input file of 10 student. Name of input file is marks.txt. write roll no and total marks of only those student two an output file which total marks is greater than equal to 300. Name of output file is result.txt?