[BOJ/Step5] 1차원 배열 (C++)

https://www.acmicpc.net/problem/10818 : 최소, 최대

c++

닫기 줄바꿈

#include <iostream>
#include <algorithm>
using namespace std;

int main(void){
​​​​int n = 0;
​​​​cin >> n;
​​​​int *num = new int[n];
​​​​for (int i = 0; i < n; i++){
​​​​​​​​int a;
​​​​​​​​cin >> a;
​​​​​​​​num[i] = a;
​​​​}
​​​​sort(num, num + n);
​​​​cout << num[0] << " " << num[n-1] << endl;
​​​​delete[] num;
}

-> algorithm 헤더파일에 sort 함수 사용

 

https://www.acmicpc.net/problem/2562 : 최댓값

c++

닫기 줄바꿈

#include <iostream>
using namespace std;

int main(void){
​​​​int max = -1, num = 0;
​​​​for(int i=0; i<9; i++){
​​​​​​​​int a;
​​​​​​​​cin >> a;
​​​​​​​​if(max < a){
​​​​​​​​​​​​max = a;
​​​​​​​​​​​​num = i+1;
​​​​​​​​}
​​​​}
​​​​cout << max << endl;
​​​​cout << num << endl;
}

리스트 안쓰고.. 그냥.....

 

https://www.acmicpc.net/problem/2577 : 숫자의 개수

c++

닫기 줄바꿈

#include <iostream>
using namespace std;

int main(void){
​​​​int a, b, c;
​​​​int arr[10] = {0};
​​​​cin >> a >> b >> c;
​​​​int num = a * b * c;
​​​​while(num != 0){
​​​​​​​​arr[num%10]++;
​​​​​​​​num /= 10;
​​​​}
​​​​for(int i=0; i<10; i++){
​​​​​​​​cout << arr[i] << endl;
​​​​}
}

 

https://www.acmicpc.net/problem/3052 : 나머지

c++

닫기 줄바꿈

#include <iostream>
using namespace std;

int main(void){
​​​​int arr[42] = {0};
​​​​for(int i=0; i<10; i++){
​​​​​​​​int num;
​​​​​​​​cin >> num;
​​​​​​​​arr[num%42]++;
​​​​}
​​​​int count = 0;
​​​​for(int i=0; i<42; i++){
​​​​​​​​if(arr[i]!=0) count++;
​​​​}
​​​​cout << count;
}

 

https://www.acmicpc.net/problem/1546 : 평균

c++

닫기 줄바꿈

#include <iostream>
using namespace std;

int main(void){
​​​​int n, max = 0;
​​​​double total = 0;
​​​​cin >> n;
​​​​double *score = new double[n];
​​​​double *n_score = new double[n];
​​​​for(int i = 0; i < n; i++){
​​​​​​​​double s;
​​​​​​​​cin >> s;
​​​​​​​​score[i] = s;
​​​​​​​​max = (s > max) ? s : max;
​​​​}
​​​​for(int i = 0; i < n; i++){
​​​​​​​​n_score[i] = score[i] * 100 / max ;
​​​​​​​​total += n_score[i];
​​​​}
​​​​cout << total/n << endl;
}

 

https://www.acmicpc.net/problem/8958 : OX 퀴즈

c++

닫기 줄바꿈

#include <iostream>
using namespace std;

int main(void){
​​​​int n;
​​​​cin >> n;
​​​​for(int i=0; i<n; i++){
​​​​​​​​int total = 0, score = 0;
​​​​​​​​string test;
​​​​​​​​cin >> test;
​​​​​​​​for (int i = 0; i < test.length(); i++){
​​​​​​​​​​​​if(test[i] == 'O'){
​​​​​​​​​​​​​​​​score += 1;
​​​​​​​​​​​​​​​​total += score;
​​​​​​​​​​​​}else{
​​​​​​​​​​​​​​​​score = 0;
​​​​​​​​​​​​}
​​​​​​​​}
​​​​​​​​cout << total << endl;
​​​​​​​​total = 0, score = 0;
​​​​}
}

 

https://www.acmicpc.net/problem/4344 : 평균은 넘겠지

c++

닫기 줄바꿈

#include <iostream>
using namespace std;

int main(void){
​​​​int c;
​​​​cin >> c;
​​​​for(int i = 0; i < c; i++){
​​​​​​​​int n;
​​​​​​​​double total = 0;
​​​​​​​​cin >> n;
​​​​​​​​int *score = new int[n];
​​​​​​​​for(int j=0; j<n; j++){
​​​​​​​​​​​​cin >> score[j];
​​​​​​​​​​​​total += score[j];
​​​​​​​​}
​​​​​​​​double avg = total / n;
​​​​​​​​double m = 0;
​​​​​​​​for(int j=0; j<n; j++){
​​​​​​​​​​​​if(score[j] > avg)
​​​​​​​​​​​​​​​​m += 1;
​​​​​​​​}
​​​​​​​​double per = m * 100 / n;
​​​​​​​​printf("%.3f%%\n", per);
​​​​}
}

 

 

 

하면 할수록 파이썬이 최고라는 생각만 드는걸.....?...... 파이썬 최고다...