This is an intro to programming course…keep it simple!! And in CWrite a program typemult.c in C that prompts the user for two numbers and asks whether to treat each number as an integer. Then multiply the two numbers, treating each number as an int or double based on the user’s preference. Print the resulting computation, matching the format in the examples below. Note that numbers are comma delimited and that the user can answer the y/n questions with either lower or uppercase letters.(˜)\$ a.outEnter two numbers to multiply: 2.5,3.5Is the first number an int (y/n)? nIs the second number an int (y/n)? N2.50 * 3.50 = 8.75(˜)\$ a.outEnter two numbers to multiply: 0.5, 3.5Is the first number an int (y/n)? nIs the second number an int (y/n)? Y0.50 * 3 = 1.50Write a program energy.c in C that calculates an electricity bill for an electric company that provides a credit for user-generated energy (e.g. from solar panels). Your program will prompt the user for the amount of energy consumed and the amount of energy generated. Note that the user input is / delimited. The bill will be calculated according to a tiered pricing model applied to kilowatt-hours (kWh) consumed and generated. For energy generated, the user is always credited \$0.10/kWh. For energy consumed, the ﬁrst 300 kWh are charged at a rate of \$0.15/kWh. Energy consumed beyond 300 kWh is charged at a rate of \$0.30/kWh. The energy company likes their calculations to have at least 10 digits of precision and for the price to be returned to the millionth dollar (\$0.000001), so choose your variable data types accordingly and format your output as shown below. a.outHow many kWh were consumed/generated? 1/0Your bill is: \$0.150000(˜)\$ a.outHow many kWh were consumed/generated? 100 / 1Your bill is: \$14.900000Write a program seconds.c in C that prompts the user for a number of seconds and returns the equivalent number of years, days, hours, minutes, and seconds. Your program should correctly respond to inputs that correspond to 0 seconds up to at least 10,000 years. Assume that a year has 365 days,a.outHow many seconds? 40000000That is 1 year(s), 97 day(s), 23 hour(s), 6 min(s), 40 sec(s)a.outHow many seconds? 0That is 0 year(s), 0 day(s), 0 min(s), 0 sec(s)How many seconds? 315360000000That is 10000 year(s), 0 day(s), 0 hour(s), 0 min(s), 0 sec(s