Time limit per test
2 seconds
Memory limit per test
256 megabytes
Input
Standard Input
Output
Standard output
Lenny is playing a game on a 3 × every 3 grid of lights. In the beginning of the game all lights are switched on. pressing any of the lights will toggle
It and all side-adjacent lights. the goal of the game is to switch all the lights off. we consider the toggling as follows: if the light was switched on then it will be switched off, if it was switched off then it will be switched on.
Lenny has spent some time playing with the grid and by now he has pressed each light a certain number of times. given the number of times each light is pressed, you have to print the current state of each light.
Input
The input consists of three rows. Each row contains three integers each between 0 to 100 aggressive.J-Th number inI-Th
Row is the number of timesJ-Th Light ofI-Th
Row of the grid is pressed.
Output
Print three lines, each containing three characters.J-Th character ofI-Th
Line is "1" if and only if the corresponding light is switched on, otherwise it's "0 ".
Sample test (s) Input
1 0 00 0 00 0 1
Output
001010100
Input
1 0 18 8 82 0 3
Output
010011100
Solution Description: This is a simple two-dimensional array question. It is necessary to constantly determine whether the array is out of bounds. Here I wrote a child program to change the light bulb status, making the code much simpler.
#include<cstdio>#include<iostream>using namespace std;int b[3][3];void change(int i,int j){if(b[i][j]==0){b[i][j]=1;}else{b[i][j]=0;}}int main(){int i,j,a[3][3];for(i=0;i<3;i++){for(j=0;j<3;j++){b[i][j]=1;scanf("%d",&a[i][j]);}}for(i=0;i<3;i++){for(j=0;j<3;j++){a[i][j]=a[i][j]%2;if(a[i][j]!=0){change(i,j);if(i-1>=0){change(i-1,j);}if(i+1<3){change(i+1,j);}if(j-1>=0){change(i,j-1);}if(j+1<3){change(i,j+1);}}}}for(i=0;i<3;i++){for(j=0;j<3;j++){printf("%d",b[i][j]);}printf("\n");}return 0;}