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www.tothefor.com
蓝桥杯复习知识点汇总
目录
顺时针旋转
90°
import java.io.*;
import java.math.BigInteger;
import java.util.*;
/**
* @Author DragonOne
* @Date 2021/12/5 21:27
* @墨水记忆 www.tothefor.com
*/
public class Main {
public static BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
public static BufferedWriter out = new BufferedWriter(new OutputStreamWriter(System.out));
public static StreamTokenizer cin = new StreamTokenizer(new BufferedReader(new InputStreamReader(System.in)));
public static PrintWriter cout = new PrintWriter(new OutputStreamWriter(System.out));
public static Scanner sc = new Scanner(System.in);
public static int monthes[]= {
0,31,28,31,30,31,30,31,31,30,31,30,31};//一年中的12个月每月的天数
public static int maxd = 1000+7;
public static int INF = 0x3f3f3f3f;
public static int mod = 998244353;
public static int[][] a = new int[maxd][maxd];
public static int[][] b = new int[maxd][maxd];
public static void main(String[] args) throws Exception {
int n = nextInt(); //行
int m = nextInt(); //列
for(int i=0;i<n;++i){
for(int j=0;j<m;++j){
a[i][j]=nextInt();
}
}
//旋转后为m行n列
for(int i=0;i<m;++i){
//行
for(int j=0;j<n;++j){
//列
b[i][j]=a[n-1-j][i];
}
}
for(int i=0;i<m;++i){
for(int j=0;j<n;++j){
System.out.print(b[i][j]+" ");
}
System.out.println();
}
closeAll();
}
public static int gcd(int a,int b){
// 不需要判断a和b的大小
while(b>0){
a%=b;b^=a;a^=b;b^=a;
// while(b^=a^=b^=a%=b);
}
return a;
// return (a % b == 0) ? b : gcd(b, a%b);
}
public static void cinInit(){
cin.wordChars('a', 'z');
cin.wordChars('A', 'Z');
cin.wordChars(128 + 32, 255);
cin.whitespaceChars(0, ' ');
cin.commentChar('/');
cin.quoteChar('"');
cin.quoteChar('\'');
cin.parseNumbers(); //可单独使用还原数字
}
public static int nextInt() throws Exception {
cin.nextToken();
return (int) cin.nval;
}
public static long nextLong() throws Exception {
cin.nextToken();
return (long) cin.nval;
}
public static double nextDouble() throws Exception {
cin.nextToken();
return cin.nval;
}
public static String nextString() throws Exception {
cin.nextToken();
return cin.sval;
}
public static void closeAll() throws Exception {
cout.close();
in.close();
out.close();
}
}
180°
import java.io.*;
import java.math.BigInteger;
import java.util.*;
/**
* @Author DragonOne
* @Date 2021/12/5 21:27
* @墨水记忆 www.tothefor.com
*/
public class Main {
public static BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
public static BufferedWriter out = new BufferedWriter(new OutputStreamWriter(System.out));
public static StreamTokenizer cin = new StreamTokenizer(new BufferedReader(new InputStreamReader(System.in)));
public static PrintWriter cout = new PrintWriter(new OutputStreamWriter(System.out));
public static Scanner sc = new Scanner(System.in);
public static int monthes[]= {
0,31,28,31,30,31,30,31,31,30,31,30,31};//一年中的12个月每月的天数
public static int maxd = 1000+7;
public static int INF = 0x3f3f3f3f;
public static int mod = 998244353;
public static int[][] a = new int[maxd][maxd];
public static int[][] b = new int[maxd][maxd];
public static void main(String[] args) throws Exception {
int n = nextInt(); //行
int m = nextInt(); //列
for(int i=0;i<n;++i){
for(int j=0;j<m;++j){
a[i][j]=nextInt();
}
}
//旋转后还是为 n行 m列
for(int i=0;i<n;++i){
//行
for(int j=0;j<m;++j){
//列
b[i][j]=a[n-1-i][m-1-j];
}
}
for(int i=0;i<n;++i){
for(int j=0;j<m;++j){
System.out.print(b[i][j]+" ");
}
System.out.println();
}
closeAll();
}
public static int gcd(int a,int b){
// 不需要判断a和b的大小
while(b>0){
a%=b;b^=a;a^=b;b^=a;
// while(b^=a^=b^=a%=b);
}
return a;
// return (a % b == 0) ? b : gcd(b, a%b);
}
public static void cinInit(){
cin.wordChars('a', 'z');
cin.wordChars('A', 'Z');
cin.wordChars(128 + 32, 255);
cin.whitespaceChars(0, ' ');
cin.commentChar('/');
cin.quoteChar('"');
cin.quoteChar('\'');
cin.parseNumbers(); //可单独使用还原数字
}
public static int nextInt() throws Exception {
cin.nextToken();
return (int) cin.nval;
}
public static long nextLong() throws Exception {
cin.nextToken();
return (long) cin.nval;
}
public static double nextDouble() throws Exception {
cin.nextToken();
return cin.nval;
}
public static String nextString() throws Exception {
cin.nextToken();
return cin.sval;
}
public static void closeAll() throws Exception {
cout.close();
in.close();
out.close();
}
}
270°
import java.io.*;
import java.math.BigInteger;
import java.util.*;
/**
* @Author DragonOne
* @Date 2021/12/5 21:27
* @墨水记忆 www.tothefor.com
*/
public class Main {
public static BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
public static BufferedWriter out = new BufferedWriter(new OutputStreamWriter(System.out));
public static StreamTokenizer cin = new StreamTokenizer(new BufferedReader(new InputStreamReader(System.in)));
public static PrintWriter cout = new PrintWriter(new OutputStreamWriter(System.out));
public static Scanner sc = new Scanner(System.in);
public static int monthes[]= {
0,31,28,31,30,31,30,31,31,30,31,30,31};//一年中的12个月每月的天数
public static int maxd = 1000+7;
public static int INF = 0x3f3f3f3f;
public static int mod = 998244353;
public static int[][] a = new int[maxd][maxd];
public static int[][] b = new int[maxd][maxd];
public static void main(String[] args) throws Exception {
int n = nextInt(); //行
int m = nextInt(); //列
for(int i=0;i<n;++i){
for(int j=0;j<m;++j){
a[i][j]=nextInt();
}
}
//旋转后为 m行 n列
for(int i=0;i<m;++i){
//行
for(int j=0;j<n;++j){
//列
b[i][j]=a[j][m-1-i];
}
}
for(int i=0;i<m;++i){
for(int j=0;j<n;++j){
System.out.print(b[i][j]+" ");
}
System.out.println();
}
closeAll();
}
public static int gcd(int a,int b){
// 不需要判断a和b的大小
while(b>0){
a%=b;b^=a;a^=b;b^=a;
// while(b^=a^=b^=a%=b);
}
return a;
// return (a % b == 0) ? b : gcd(b, a%b);
}
public static void cinInit(){
cin.wordChars('a', 'z');
cin.wordChars('A', 'Z');
cin.wordChars(128 + 32, 255);
cin.whitespaceChars(0, ' ');
cin.commentChar('/');
cin.quoteChar('"');
cin.quoteChar('\'');
cin.parseNumbers(); //可单独使用还原数字
}
public static int nextInt() throws Exception {
cin.nextToken();
return (int) cin.nval;
}
public static long nextLong() throws Exception {
cin.nextToken();
return (long) cin.nval;
}
public static double nextDouble() throws Exception {
cin.nextToken();
return cin.nval;
}
public static String nextString() throws Exception {
cin.nextToken();
return cin.sval;
}
public static void closeAll() throws Exception {
cout.close();
in.close();
out.close();
}
}