信息奥赛一本通—编程启蒙（3373：练64.2 图像旋转翻转变换）

代码如下：

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

int main(){
	vector<vector<int>> a, b;
	int m, n, i, j;
	string s;
	cin >> m >> n;
	for (i = 0; i < m; i++){
		vector<int> l;
		for (j = 0; j < n; j++)
		{
			int x;
			cin >> x;
			l.push_back(x);
		}
		a.push_back(l);
	}
	cin >> s;
	for (int k = 0; k < s.size(); k++){
		if (s[k] == 'A'){
			b.clear();
			for (i = 0; i < n; i++)
			{
				vector<int> l;
				for (j = 0; j < m; j++)
					l.push_back(a[m - 1 - j][i]);
				b.push_back(l);
			}
			a = b;
			swap(m, n);
		}
		else if (s[k] == 'B'){
			b.clear();
			for (i = 0; i < n; i++){
				vector<int> l;
				for (j = 0; j < m; j++)
					l.push_back(a[j][n - 1 - i]);
				b.push_back(l);
			}
			a = b;
			swap(m, n);
		}
		else if (s[k] == 'C'){
			for (i = 0; i < m; i++)
				reverse(a[i].begin(), a[i].end());
		}
		else if (s[k] == 'D'){
			for (i = 0; i < m / 2; i++)
				swap(a[i], a[m - 1 - i]);
		}
	}
	for (i = 0; i < m; i++){
		for (j = 0; j < n; j++){
			if (j > 0) cout << " ";
			cout << a[i][j];
		}
		cout << endl;
	}
	
	return 0;
}

网站链接：https://bas.ssoier.cn/problem_show.php?pid=3373

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