C 语言全部题目及答案Exercise 1: Programmi ng En vir onment and Basic In put/Output1. Write a program that prints “This is my first program!on the screen.(a) Save this program on to your own disk with the n ame of e2-1a;(b) R un this program without ope ning Turbo C;(c) Modify this program to print “This is my second program” , then save it as1 to 4 on theWsame lineogWrmtehaheprints the nu mberusing the followi ng methods:(a) Using four “ printf stateme nts.(b) Usings。(c)Using one3. (a) Write a program that acalculates and displays the number of minutes in 15 days.(b) Writeprogram that calculates and displays how manyhours 180 minutes equale2-1b. Please do not overwrite the first program.to.(c) (Optional) How about 174 minutesN?SWERS:program“printf stateme nt with noconv ersi on specifier (i.e. no '% ).“printf statement with four conversion specifiers#i ncludeint mai n()(prin tf("This is my firstprogram!");return 0;}#i ncludeint mai n()(prin tf("This is my sec ondprogram!");return 0;}#i ncludeint mai n()(prin tf("1");prin tf("2");prin tf("3");prin tf("4"); return 0;}#i ncludeint mai n()(prin tf("1234"); return 0;}#i ncludeint mai n()(prin tf("%d%d%d%d",1,2,3,4); return 0;}#in cludeint mai n()(float days, minu tes;days = 15;minu tes = days * 24 *60;prin tf("The nu mber of mtesin 15 daysare %f\n", minu tes);return 0;}#in cludeint mai n()(float minu tes,hours;minu tes = 180;hours = minu tes / 60;prin tf("180 minu tesequal to %f hours\n",hours);return 0;}#in cludeint mai n()(inutes,tes = 174;hours = minu tes / 60;prin tf("174 mi nu tesequal to %f hours\n",hours);return 0;Exercise 2: Data Types and Arithmetic Operati ons1. You purchase a laptop comp...