This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "rainbow.h"
#include<bits/stdc++.h>
using namespace std;
vector<vector<char>> grid;
void llenar(vector<vector<char>> &clon,int ar,int ac,int br,int bc,int i,int j){
clon[i][j]='x';
if(i==ar && j==ac){
if(clon[i+1][j]==' '){
llenar(clon,ar,ac,br,bc,i+1,j);
}
if(clon[i][j+1]==' '){
llenar(clon,ar,ac,br,bc,i,j+1);
}
}else if(i==ar && j==bc){
if(clon[i+1][j]==' '){
llenar(clon,ar,ac,br,bc,i+1,j);
}
if(clon[i][j-1]==' '){
llenar(clon,ar,ac,br,bc,i,j-1);
}
}else if(i==br && j==ac){
if(clon[i-1][j]==' '){
llenar(clon,ar,ac,br,bc,i-1,j);
}
if(clon[i][j+1]==' '){
llenar(clon,ar,ac,br,bc,i,j+1);
}
}else if(i==br && j==bc){
if(clon[i-1][j]==' '){
llenar(clon,ar,ac,br,bc,i-1,j);
}
if(clon[i][j-1]==' '){
llenar(clon,ar,ac,br,bc,i,j-1);
}
}else if(i==ar){
if(clon[i+1][j]==' '){
llenar(clon,ar,ac,br,bc,i+1,j);
}
if(clon[i][j-1]==' '){
llenar(clon,ar,ac,br,bc,i,j-1);
}
if(clon[i][j+1]==' '){
llenar(clon,ar,ac,br,bc,i,j+1);
}
}else if(i==br){
if(clon[i-1][j]==' '){
llenar(clon,ar,ac,br,bc,i-1,j);
}
if(clon[i][j-1]==' '){
llenar(clon,ar,ac,br,bc,i,j-1);
}
if(clon[i][j+1]==' '){
llenar(clon,ar,ac,br,bc,i,j+1);
}
}else if(j==ac){
if(clon[i+1][j]==' '){
llenar(clon,ar,ac,br,bc,i+1,j);
}
if(clon[i-1][j]==' '){
llenar(clon,ar,ac,br,bc,i-1,j);
}
if(clon[i][j+1]==' '){
llenar(clon,ar,ac,br,bc,i,j+1);
}
}else if(j==bc){
if(clon[i+1][j]==' '){
llenar(clon,ar,ac,br,bc,i+1,j);
}
if(clon[i-1][j]==' '){
llenar(clon,ar,ac,br,bc,i-1,j);
}
if(clon[i][j-1]==' '){
llenar(clon,ar,ac,br,bc,i,j-1);
}
}else{
if(clon[i+1][j]==' '){
llenar(clon,ar,ac,br,bc,i+1,j);
}
if(clon[i-1][j]==' '){
llenar(clon,ar,ac,br,bc,i-1,j);
}
if(clon[i][j+1]==' '){
llenar(clon,ar,ac,br,bc,i,j+1);
}
if(clon[i][j-1]==' '){
llenar(clon,ar,ac,br,bc,i,j-1);
}
}
}
void init(int R, int C, int sr, int sc, int M, char *S) {
vector<char> auxi(C,' ');
for(int i=0;i<R;i++){
grid.push_back(auxi);
}
sr--;
sc--;
grid[sr][sc]='x';
for(int i=0;i<M;i++){
switch(S[i]){
case 'N':
sr--;
break;
case 'S':
sr++;
break;
case 'W':
sc--;
break;
case 'E':
sc++;
break;
}
grid[sr][sc]='x';
}
}
int colour(int ar, int ac, int br, int bc) {
int canti=0;
ar--;
ac--;
br--;
bc--;
vector<vector<char>> clon(grid.begin(),grid.end());
for(int i=ar;i<=br;i++){
for(int j=ac;j<=bc;j++){
if(clon[i][j]==' '){
canti++;
llenar(clon,ar,ac,br,bc,i,j);
}
}
}
return canti;
}
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