total la EXERICISE QUESTIONS: Q.1 Write a program to input the cost of a book and find the cost of 20 such books Q.2 Write a program to input the year of birth and current year and find the age of a student Q.3 Write a program to print the sum of three numbers taken as input Q.4 Write a program to input the side of a square and find its area Q.5 Write a program to input a number and find the sum of its square and cube. c++
Answers
Answer:
class GFG {
public static int minCost(int ratings[], int n)
{
int res = 0;
int left2right[] = new int[n];
int right2left[] = new int[n];;
// fill 1 in both array
Arrays.fill(left2right, 1);
Arrays.fill(right2left, 1);
// Traverse from left to right and assign
// minimum possible rating considering
// only left adjacent
for (int i = 1; i < n; i++)
if (ratings[i] > ratings[i - 1])
left2right[i] = left2right[i - 1] + 1;
// Traverse from right to left and assign
// minimum possible rating considering only
// right adjacent
for (int i = n - 2; i >= 0; i--)
if (ratings[i] > ratings[i + 1])
right2left[i] = right2left[i + 1] + 1;
// Since we need to follow rating rule for
// both adjacent, we pick maximum of two
for (int i = 0; i < n; i++)
res += Math.max(left2right[i],
right2left[i]);
return res;
}
/* Driver program to test above function */
public static void main(String[] args)
{
int ratings[] = { 1, 6, 8, 3, 4, 1, 5, 7 };
int n = ratings.length;
System.out.print(minCost(ratings, n));
}
}
import java.io.*;
class GFG {
static void findAge(int current_date, int current_month,
int current_year, int birth_date,
int birth_month, int birth_year)
{
int month[] = { 31, 28, 31, 30, 31, 30, 31,
31, 30, 31, 30, 31 };
// if birth date is greater then current
// birth_month, then donot count this month
// and add 30 to the date so as to subtract
// the date and get the remaining days
if (birth_date > current_date) {
current_month = current_month - 1;
current_date = current_date + month[birth_month - 1];
}
// if birth month exceeds current month,
// then do not count this year and add
// 12 to the month so that we can subtract
// and find out the difference
if (birth_month > current_month) {
current_year = current_year - 1;
current_month = current_month + 12;
}
// calculate date, month, year
int calculated_date = current_date - birth_date;
int calculated_month = current_month - birth_month;
int calculated_year = current_year - birth_year;
// print the present age
System.out.println("Present Age");
System.out.println("Years: " + calculated_year +
" Months: " + calculated_month + " Days: " +
calculated_date);
}
public static void main(String[] args)
{
// present date
int current_date = 7;
int current_month = 12;
int current_year = 2017;
// birth dd// mm// yyyy
int birth_date = 16;
int birth_month = 12;
int birth_year = 2009;
// function call to print age
Explanation:
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