POJ 1222|Extended Lights Out|高斯消元|异或方程组
来源:互联网 发布:苹果6激活应用与数据 编辑:程序博客网 时间:2024/06/07 10:51
其实挺惊讶的咋没A这题。。
#include <cstdio>#include <cstring>#include <algorithm>using namespace std;#define FOR(i,j,k) for(i=j;i<=k;++i)#define rep(i,j,k) for(i=j;i<k;++i)const int dx[] = {-1, 1, 0, 0};const int dy[] = {0, 0, -1, 1};const int N = 32;int f[N][N];void gauss(int n) { int i, j, k; rep(i,0,n) { rep(k,i,n) if (f[k][i]) break; FOR(j,0,n) swap(f[i][j],f[k][j]); rep(j,0,n) if (i != j && f[j][i]) FOR(k,0,n) f[j][k] ^= f[i][k]; }}int main() {#define id(i,j) (i*6+j) int i, j, k, kase = 0, t; scanf("%d", &t); while (t--) { memset(f, 0, sizeof f); rep(i,0,5) rep(j,0,6) scanf("%d", &f[id(i,j)][30]); rep(i,0,5) rep(j,0,6) { f[id(i,j)][id(i,j)] = 1; rep(k,0,4) { int nx = i + dx[k], ny = j + dy[k]; if (nx >= 0 && nx < 5 && ny >= 0 && ny < 6) f[id(i,j)][id(nx,ny)] = 1; } } gauss(30); printf("PUZZLE #%d\n", ++kase); for(i=0;i<5;++i,putchar('\n')) rep(j,0,6) printf("%d ", f[id(i,j)][30]); } return 0;}
EXTENDED LIGHTS OUT
Description
In an extended version of the game Lights Out, is a puzzle with 5 rows of 6 buttons each (the actual puzzle has 5 rows of 5 buttons each). Each button has a light. When a button is pressed, that button and each of its (up to four) neighbors above, below, right and left, has the state of its light reversed. (If on, the light is turned off; if off, the light is turned on.) Buttons in the corners change the state of 3 buttons; buttons on an edge change the state of 4 buttons and other buttons change the state of 5. For example, if the buttons marked X on the left below were to be pressed,the display would change to the image on the right.
The aim of the game is, starting from any initial set of lights on in the display, to press buttons to get the display to a state where all lights are off. When adjacent buttons are pressed, the action of one button can undo the effect of another. For instance, in the display below, pressing buttons marked X in the left display results in the right display.Note that the buttons in row 2 column 3 and row 2 column 5 both change the state of the button in row 2 column 4,so that, in the end, its state is unchanged.
Note:
1. It does not matter what order the buttons are pressed.
2. If a button is pressed a second time, it exactly cancels the effect of the first press, so no button ever need be pressed more than once.
3. As illustrated in the second diagram, all the lights in the first row may be turned off, by pressing the corresponding buttons in the second row. By repeating this process in each row, all the lights in the first
four rows may be turned out. Similarly, by pressing buttons in columns 2, 3 ?, all lights in the first 5 columns may be turned off.
Write a program to solve the puzzle.
Input
The first line of the input is a positive integer n which is the number of puzzles that follow. Each puzzle will be five lines, each of which has six 0 or 1 separated by one or more spaces. A 0 indicates that the light is off, while a 1 indicates that the light is on initially.
Output
For each puzzle, the output consists of a line with the string: “PUZZLE #m”, where m is the index of the puzzle in the input file. Following that line, is a puzzle-like display (in the same format as the input) . In this case, 1’s indicate buttons that must be pressed to solve the puzzle, while 0 indicate buttons, which are not pressed. There should be exactly one space between each 0 or 1 in the output puzzle-like display.
Sample Input
20 1 1 0 1 01 0 0 1 1 10 0 1 0 0 11 0 0 1 0 10 1 1 1 0 00 0 1 0 1 01 0 1 0 1 10 0 1 0 1 11 0 1 1 0 00 1 0 1 0 0
Sample Output
PUZZLE #11 0 1 0 0 11 1 0 1 0 10 0 1 0 1 11 0 0 1 0 00 1 0 0 0 0PUZZLE #21 0 0 1 1 11 1 0 0 0 00 0 0 1 0 01 1 0 1 0 11 0 1 1 0 1
Source
Greater New York 2002
- POJ 1222-EXTENDED LIGHTS OUT(高斯消元求解异或方程组)
- POJ 1222|Extended Lights Out|高斯消元|异或方程组
- POJ.1222 EXTENDED LIGHTS OUT(高斯消元 异或方程组)
- Poj 1222 EXTENDED LIGHTS OUT (高斯消元解异或方程组 开关问题)
- poj 1222 EXTENDED LIGHTS OUT (高斯消元解异或方程组 开关问题)
- POJ 1222 EXTENDED LIGHTS OUT 高斯消元解异或方程组
- 【POJ1222】EXTENDED LIGHTS OUT 高斯消元、解异或方程组
- POJ 1222 EXTENDED LIGHTS OUT 高斯消元 异或方程 (水
- poj 1222 EXTENDED LIGHTS OUT 高斯消元 异或方程
- POJ 1222 EXTENDED LIGHTS OUT (异或消元)
- POJ 1222 EXTENDED LIGHTS OUT(高斯消元 异或+求逆版本)
- poj 1222 EXTENDED LIGHTS OUT //高斯消元
- POJ 1222 EXTENDED LIGHTS OUT 枚举 || 高斯消元
- POJ 1222 EXTENDED LIGHTS OUT 高斯消元
- poj 1222 EXTENDED LIGHTS OUT 高斯消元
- poj 1222 EXTENDED LIGHTS OUT高斯消元。
- poj 1222 EXTENDED LIGHTS OUT(高斯消元)
- [高斯消元] poj 1222 EXTENDED LIGHTS OUT
- IOS 设置label内的字体大小适应label的宽度
- CSS 隐性改变display类型
- 太原UI设计师讲【设计色彩】一种是自然的色彩一种是显示色彩你知道区别吗?
- Android基础UI之ImageView宽度设定,高度自适应
- Git常用命令
- POJ 1222|Extended Lights Out|高斯消元|异或方程组
- dkms
- 建树之tire树
- Retrofit 和 http_ok 获取ip
- 基因数据处理20之BWASW算法ref分块建立索引然后比对
- Android 设置EditText光标位置、粗细颜色
- Apple移动设备处理器指令集 armv6、armv7、armv7s及arm64
- c#实验7.1百分制转为五分制
- Android网络状态实时监听器