Question

Write a complete program in C ++ to calculate the day Easter will fall on based on these INTEGER equations by inputting the integer year and outputting the date of Easter.

Y = Year read in

N = Y - 1900

A = N - (N/19)*19

B = (7*A + 1)/19

C = 11*A + 4 - B

M = C - (C/29)*29

Q = N/4

S = N + Q + 31 - M

W = S - (S/7)*7

DATE = 25 - M - W

If DATE = 0 then Easter is March, 31

If DATE < 0 then Easter is March, (31 + DATE)

If DATE > 0 then Easter is April, DATE

Answer 1

#include <iostream>

using namespace std;

int main() {
    int year;
    cout << "Enter year: ";
    cin >> year;

    int N = year - 1900;
    int A = N - (N/19)*19;
    int B = (7*A + 1)/19;
    int C = 11*A + 4 - B;
    int M = C - (C/29)*29;
    int Q = N/4;
    int S = N + Q + 31 - M;
    int W = S - (S/7)*7;
    int DATE = 25 - M - W;

    if (DATE == 0) {
        cout << "easter is on March, 31" << endl;
    } else if (DATE < 0) {
        cout << "easter is on March, " << 31+DATE << endl;
    } else {
        cout << "easter is on April, " << DATE << endl;
    }
    return 0;
}