change_color_matrix.rar_Change

#include<iostream> #include<string> #include<cstring> #include<algorithm> #include<map> using namespace std; bool is_valid_cell(int x,int y,int r,int c){ if((x>=0 && x<r) && (y>=0 && y<c)) return true; else return false; } int main(){ int i,j,r,c,x,y; char cl; r = 4; c = 4; x = 1; y = 1; //char inp[][3] = {{'B','G','B'},{'B','G','G'},{'B','B','B'}}; char inp[][4] = {{'B','G','B','B'},{'B','G','G','B'},{'G','G','B','B'},{'B','G','G','B'}}; // Print Initial Matrix cout<<"Initial "<<endl; for(i=0;i<r;i++){ for(j=0;j<c;j++) cout<<inp[i][j]<<" "; cout<<endl; } cout<<endl; //change to 0 cl = inp[x][y]; inp[x][y] = '0'; if(is_valid_cell(x-1,y,r,c)) if(inp[x-1][y] == cl) inp[x-1][y] = '0'; if(is_valid_cell(x+1,y,r,c)) if(inp[x+1][y] == cl) inp[x+1][y] = '0'; if(is_valid_cell(x,y-1,r,c)) if(inp[x][y-1] == cl) inp[x][y-1] = '0'; if(is_valid_cell(x,y+1,r,c)) if(inp[x][y+1] == cl) inp[x][y+1] = '0'; // Print Intermediate Matrix cout<<"Intermediate "<<endl; for(i=0;i<r;i++){ for(j=0;j<c;j++) cout<<inp[i][j]<<" "; cout<<endl; } cout<<endl; // swap cell with '0' value with its above cell for(i=0;i<r;i++) for(j=0;j<c;j++) if(inp[i][j] == '0'){ if(is_valid_cell(i-1,j,r,c)){ inp[i][j] = inp[i-1][j]; inp[i-1][j] = '0'; } } // Print Final Matrix cout<<"Final "<<endl; for(i=0;i<r;i++){ for(j=0;j<c;j++) cout<<inp[i][j]<<" "; cout<<endl; } cout<<endl; }