10 May 2025 11:18:46 AM PRESIDENT_HEIGHTS_BAR: C version Create a bar plot of presidential heights. Create corresponding GNUPLOT input files. Plot commands stored in "president_heights_commands.txt". To create plot: gnuplot < president_heights_commands.txt PRESIDENT_HEIGHTS_BAR: Normal end of execution. 10 May 2025 11:18:46 AM