If Conditions #2

Muhammad Magdi

if statements

if ( CONDITION#1 ) {

TRUE-STATEMENTS#1

} else if ( CONDITION#2 ) {
TRUE-STATEMENTS#2
} else if ( CONDITION#3 ) {
TRUE-STATEMENTS#3
} ... and so on
... else {
FALSE-STATEMENTS
}

Logical Operators

Operator	Meaning
&&	AND
\|\|	OR
!	NOT

AND Operator

if ( CONDITION1 && CONDITION2 && CONDITION3 && ... ) {
TRUE-STATEMENTS
}

The True-Body (True Statements) is only executed when all the ANDed conditions are true.

OR Operator

if ( CONDITION1 || CONDITION2 || CONDITION3 || ... ) {
TRUE-STATEMENTS
}

The True-Body (True Statements) is executed when one or more of the ORed conditions is true.

Triangle Type

You know that there are 3 types of triangles according to their sides.

You are given 3 integer numbers

(a, b, c) representing the lengths of the sides of a triangle.

Print the type of this triangle according to its sides.

Equilateral

Isosceles

Scalene

Triangle Type [Solution]

#include <iostream>

using namespace std;

int main() {
  int a, b, c;
  cin >> a >> b >> c;
  if (a == b && b == c) {
    cout << "Equilateral" << endl;
  } else if (a == b || a == c || b == c) {
    cout << "Isosceles" << endl;
  } else {
    cout << "Scalene" << endl;
  }
  return 0;
}

URI 1052 - Month [Solution]

#include <iostream>

using namespace std;

int main (){
    int x;
    cin >> x;
    if (x == 1) {
        cout << "January" << endl;
    } else if (x == 2) {
        cout << "February" << endl;
    } else if (x == 3) {
        cout << "March" << endl;
    } else if (x == 4) {
        cout << "April" << endl;
    } else if (x == 5) {
        cout << "May" << endl;
    } else if (x == 6) {
        cout << "June" << endl;
    } else if (x == 7) {
        cout << "July" << endl;
    } else if (x == 8) {
        cout << "August" << endl;
    } else if (x == 9) {
        cout << "September" << endl;
    } else if (x == 10) {
        cout << "October" << endl;
    } else if (x == 11) {
        cout << "November" << endl;
    } else {
        cout << "December" << endl;
    }
    return 0;
}

URI 1050 - DDD [Solution]

#include <iostream>

using namespace std;

int main() {
  int x;
  cin >> x;
  if (x == 61) {
    cout << "Brasilia" << endl;
  } else if (x == 71) {
    cout << "Salvador" << endl;
  } else if (x == 11) {
    cout << "Sao Paulo" << endl;
  } else if (x == 21) {
    cout << "Rio de Janeiro" << endl;
  } else if (x == 32) {
    cout << "Juiz de Fora" << endl;
  } else if (x == 19) {
    cout << "Campinas" << endl;
  } else if (x == 27) {
    cout << "Vitoria" << endl;
  } else if (x == 31) {
    cout << "Belo Horizonte" << endl;
  } else {
    cout << "DDD nao cadastrado" << endl;
  }
  return 0;
}

URI 1044 - Multiples [Solution]

#include <iostream>

using namespace std;

int main (){
    int a, b;
    cin >> a >> b;
    if (a % b == 0 || b % a == 0) {
        cout << "Sao Multiplos" << endl;
    } else {
        cout << "Nao sao Multiplos" << endl;
    }
    return 0;
}

Thanks

Content

if ... else if ... else - syntax
Logical Operators
AND Operator
OR Operator
Triangle type [solution]
URI 1052 - Month [Solution]
URI 1050 - DDD [Solution]
URI 1044 - Multiples [Solution]

If 2

By Muhammad Magdi