include iostream using namespace std int main int

#include <iostream> using namespace std; int main() { int score 1, score 2, score 3; int average; cout << "Enter 3 test scores and I will average them: "; cin >> score 1 >> score 2 >> score 3; average = (score 1 + score 2 + score 3) / 3. 0; cout << "Your average is " << average << endl; if (average == 100) { cout << "Congratulations! "; cout << "That's a perfect score!n"; } return 0; }

if (average == 100); // Error. The semicolon terminates { // the if statement prematurely. cout << "Congratulations! "; cout << "That's a perfect score!n"; } if (average == 100) cout << "Congratulations! "; // There are no braces. cout << "That's a perfect score!n"; // This is outside the if. if (average = 100) // Error. This assigns 100 to average. { cout << "Congratulations! "; cout << "That's a perfect score!n"; }

#include <iostream> using namespace std; int main() { int number; cout << "Enter an integer and I will tell you if itn"; cout << "is odd or even. "; cin >> number; if (number % 2 == 0) cout << number << " is even. n"; else cout << number << " is odd. n"; return 0; }

#include <iostream> using namespace std; int main() { int test. Score; char grade; cin >> test. Score; if (test. Score < 60) grade = 'F'; if (test. Score < 70) grade = 'D'; if (test. Score < 80) grade = 'C'; if (test. Score < 90) grade = 'B'; if (test. Score <= 100) grade = 'A'; cout << "Your grade is " << grade << ". n"; return 0; }

void main(){ int test. Score; cin >> test. Score; char grade; bool good. Score = true; if (test. Score < 60) grade = 'F'; else if (test. Score < 70) grade = 'D'; else if (test. Score < 80) grade = 'C'; else if (test. Score < 90) grade = 'B'; else if (test. Score <= 100) grade = 'A'; else good. Score = false; if (good. Score) cout << "Your grade is " << grade << ". n"; else { cout << test. Score << " is an invalid score. n"; cout << "Please enter a score that is no greater than 100. n"; } }

#include <iostream> using namespace std; void main() { char employed, recent. Grad; cout << "Answer the following questionsn"; cout << "with either Y for Yes or "; cout << "N for No. n"; cout << "Are you employed? "; cin >> employed; cout << "Have you graduated from college "; cout << "in the past two years? "; cin >> recent. Grad; if (employed == 'Y'){ if (recent. Grad == 'Y'){ cout << "You qualify for the special "; cout << "interest rate. n"; } } }

if 문장으로 변경해보시오 int main() { char choice; cout << "Enter A, B, or C: "; cin >> choice; switch (choice) { case 'A': cout << "You entered A. n"; case 'B': cout << "You entered B. n"; case 'C': cout << "You entered C. n"; default : cout << "You did not enter A, B, or C!n"; } return 0; }

int main() { char feed. Grade; cout << "Our dog food is available in three grades: n"; cout << "A, B, and C. Which do you want pricing for? "; cin >> feed. Grade; switch(feed. Grade) { case 'a': case 'A': cout << "30 cents per pound. n"; break; case 'b': case 'B': cout << "20 cents per pound. n"; break; case 'c': case 'C': cout << "15 cents per pound. n"; break; default : cout << "That is an invalid choice. n"; } return 0; }