Added todays practice exercises

1 files changed, 127 insertions, 0 deletions

diff --git a/Year 1/Programming introduction/Practice-25.10.21.cpp b/Year 1/Programming introduction/Practice-25.10.21.cpp
new file mode 100644
index 0000000..ab96626
--- /dev/null
+++ b/Year 1/Programming introduction/Practice-25.10.21.cpp
@@ -0,0 +1,127 @@
+#include <iostream>
+
+using namespace std;
+
+/* Exercises:
+ * https://github.com/triffon/ip-2021-22/blob/master/practicum/6/week3/%D0%B7%D0%B0%D0%B4%D0%B0%D1%87%D0%B8%20%D1%82%D1%80%D0%B5%D1%82%D0%B0%20%D1%81%D0%B5%D0%B4%D0%BC%D0%B8%D1%86%D0%B0.pdf
+*/
+
+void ex0() {
+	int a;
+	cin >> a;
+
+	while(a != 0) {
+		cout << (a % 10);
+		a /= 10;
+	}
+	cout << endl;
+}
+
+void ex1() {
+	int a;
+	cin >> a;
+
+	bool isPrime = true;
+	for(int i = 2; i < a / 2; i++) { // could be improved by doing 6n +- 1 and going up to sqrt(a)
+		if (a % i == 0) {
+			isPrime = false;
+			break;
+		}
+	}
+	cout << ((isPrime) ? "yes" : "no") << endl;
+}
+
+void ex2() {
+	int a;
+	cin >> a;
+
+	int digits = (a == 0) ? 1 : 0;
+	while (a != 0) {
+		digits++;
+		a /= 10;
+	}
+	cout << digits << endl;
+}
+
+void ex3() {
+	int a;
+	cin >> a;
+
+	int b;
+	while(--a >= 0) {
+		cin >> b;
+		cout << b;
+	}
+	cout << endl;
+}
+
+void ex4() {
+	for (int i = 100, digitSum; i < 1000; i++) { // could probably be optimized
+		digitSum = i % 10 + (i / 10) % 10 + i / 100;
+		if (digitSum > 9 && digitSum < 99)
+			cout << i << endl;
+	}
+}
+
+void ex5() {
+	int n;
+	cin >> n;
+
+	if (n < 2) cout << n << endl;
+	else {
+		int sum = 1, current;
+		for (int i = 2, j = 0; i <= n; i++, j = current) {
+			current = sum;
+			sum += j;
+			j = current;
+		}
+		cout << sum << endl;
+	}
+}
+
+void ex6() {
+	int n;
+	cin >> n;
+
+	for(int i = 1; i <= n; i++) {
+		for (int j = 1; j <= i; j++)
+			cout << "*";
+		cout << endl;
+	}
+}
+
+void ex7() {
+	int n;
+	cin >> n;
+	if (n % 2 == 0) n++;
+
+	for (int i = n, starsPerRow; i >= -1 * n; i-=2) {
+		starsPerRow = (i < 0) ? i * -1 : i;
+
+		for (int j = (n - starsPerRow) / 2; j > 0; j--)
+			cout << " ";
+		for (int j = starsPerRow; j > 0; j--)
+			cout << "*";
+
+		cout << endl;
+	}
+}
+
+void ex8() {
+	int hour1, hour2;
+	cin >> hour1 >> hour2;
+
+	if (hour2 < hour1) {
+		int tmp = hour2;
+		hour2 = hour1;
+		hour1 = tmp;
+	}
+	for (int i = hour1 + 1; i < hour2; i++) {
+		cout << i << endl;
+		if (i % 100 == 59) i += 40;
+	}
+}
+
+int main() {
+	ex8();
+}