๐Ÿ’ป Dev & CSC++ Programming

C++ Programming Ch.5 Exercise 6 Solution

Problem: find() ํ•จ์ˆ˜์˜ ์›ํ˜•์€ ๋‹ค์Œ๊ณผ ๊ฐ™๋‹ค. ๋ฌธ์ž์—ด a์—์„œ ๋ฌธ์ž c๋ฅผ ์ฐพ์•„, ๋ฌธ์ž c๊ฐ€ ์žˆ๋Š” ๊ณต๊ฐ„์— ๋Œ€ํ•œ ์ฐธ์กฐ๋ฅผ ๋ฆฌํ„ดํ•œ๋‹ค. ๋งŒ์ผ ๋ฌธ์ž c๋ฅผ ์ฐพ์„ ์ˆ˜ ์—†๋‹ค๋ฉด success ์ฐธ์กฐ ๋งค๊ฐœ ๋ณ€์ˆ˜์— false๋ฅผ ์„ค์ •ํ•œ๋‹ค. ๋ฌผ๋ก  ์ฐพ๊ฒŒ ๋˜๋ฉด success์— true๋ฅผ ์„ค์ •ํ•œ๋‹ค. 1 char& find(char a[], char c, bool& success); ๋‹ค์Œ main()์ด ์ž˜ ์‹คํ–‰๋˜๋„๋ก find()๋ฅผ ์ž‘์„ฑํ•˜๋ผ. 1 2 3 4 5 6 7 8 9 10 11 int main() { char s[] = "Mike"; bool b = false; char& loc = find(s, 'M', b); if(b == false) { cout << "M์„ ๋ฐœ๊ฒฌํ•  ์ˆ˜ ์—†๋‹ค" << endl; return 0; } loc = 'm'; // 'M' ์œ„์น˜์— 'm' ๊ธฐ๋ก cout << s << endl; // "mike"๊ฐ€ ์ถœ๋ ฅ๋จ } Execution Result: ...

March 5, 2020 ยท 2 min ยท Sobamemil
๐Ÿ’ป Dev & CSC++ Programming

C++ Programming Ch.5 Exercise 4 Solution

Problem: ์•„๋ž˜์™€ ๊ฐ™์ด ์›ํ˜•์ด ์ฃผ์–ด์ง„ bigger()๋ฅผ ์ž‘์„ฑํ•˜๊ณ  ์‚ฌ์šฉ์ž๋กœ๋ถ€ํ„ฐ 2๊ฐœ์˜ ์ •์ˆ˜๋ฅผ ์ž…๋ ฅ๋ฐ›์•„ ํฐ ๊ฐ’์„ ์ถœ๋ ฅํ•˜๋Š” main()์„ ์ž‘์„ฑํ•˜๋ผ. bigger()๋Š” ์ธ์ž๋กœ ์ฃผ์–ด์ง„ a, b๊ฐ€ ๊ฐ™์œผ๋ฉด true, ์•„๋‹ˆ๋ฉด false๋ฅผ ๋ฆฌํ„ดํ•˜๊ณ  ํฐ ์ˆ˜๋Š” big์— ์ „๋‹ฌํ•œ๋‹ค. 1 bool bigger(int a, int b, int& big); Execution Result: Objective & Hints: ์ฐธ์กฐ์— ์˜ํ•œ ํ˜ธ์ถœ ์—ฐ์Šต Code: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 #include using namespace std; bool bigger(int a, int b, int& big){ if(a==b) return true; else { if(a>b) big = a; else big = b; return false; } } int main() { int a, b, big; cout << "๋‘๊ฐœ์˜ ์ •์ˆ˜๋ฅผ ์ž…๋ ฅํ•˜์„ธ์š”>>"; cin >> a >> b; if(!bigger(a, b, big)) cout << "ํฐ ์ˆ˜๋Š” : " << big; else cout << "๋‘ ์ •์ˆ˜๊ฐ€ ๊ฐ™์Šต๋‹ˆ๋‹ค."; } Explanation: ...

March 5, 2020 ยท 1 min ยท Sobamemil
๐Ÿ’ป Dev & CSC++ Programming

C++ Programming Ch.5 Exercise 2 Solution

Problem: ๋‹ค์Œ main() ํ•จ์ˆ˜์™€ Execution Result๋ฅผ ์ฐธ๊ณ ํ•˜์—ฌ half() ํ•จ์ˆ˜๋ฅผ ์ž‘์„ฑํ•˜๋ผ. 1 2 3 4 5 int main() { double n = 20; half(n); // n์˜ ๋ฐ˜๊ฐ’์„ ๊ตฌํ•ด n์„ ๋ฐ”๊พผ๋‹ค. cout << n; // 10์ด ์ถœ๋ ฅ๋œ๋‹ค. } Execution Result: Objective & Hints: ์ฐธ์กฐ ์—ฐ์Šต Code: 1 2 3 4 5 6 7 8 9 10 11 12 #include using namespace std; half(double &num){ // ์ฐธ์กฐ์— ์˜ํ•œ ํ˜ธ์ถœ num /= 2; // num์œผ๋กœ ๋„˜์–ด์˜จ ๋ณธ๋ž˜์˜ ๊ฐ’์ด ๋ฐ”๋€œ } int main() { double n = 20; half(n); // n์˜ ๋ฐ˜๊ฐ’์„ ๊ตฌํ•ด n์„ ๋ฐ”๊พผ๋‹ค. cout << n; // 10์ด ์ถœ๋ ฅ๋œ๋‹ค. } Explanation: ...

March 5, 2020 ยท 1 min ยท Sobamemil