Submission #73437

#	Time	Username	Problem	Language	Result	Execution time	Memory
73437		FedericoS	무지개나라 (APIO17_rainbow)	C++14	Compilation error	0 ms	0 KiB

rainbow

#include <iostream>
#include <queue>
#include "rainbow.h"
using namespace std;

bool B[55][55];
bool V[55][55];
int R,C;
int rmov[]={1,-1,0,0};
int cmov[]={0,0,1,-1};
queue<pair<int,int>> Q;

void init(int R_, int C_, int sr, int sc, int M, char *S) {

	R=R_;
	C=C_;

	sr--;
	sc--;

	B[sr][sc]=true;

	for(int i=0;i<M;i++){

		if(S[i]=='S')
			sr++;
		if(S[i]=='N')
			sr--;
		if(S[i]=='E')
			sc++;
		if(S[i]=='W')
			sc--;

		B[sr][sc]=true;
	}
/*
	for(int i=0;i<R;i++){
		for(int j=0;j<C;j++)
			cout<<B[i][j];
		cout<<endl;
	}
*/
}

int colour(int ar, int ac, int br, int bc) {

	ar--;
	ac--;
	br--;
	bc--;
	int ans=0;

	for(int i=0;i<R;i++)
		for(int j=0;j<C;j++)
			V[i][j]=B[i][j];


	for(int i=ar;i<=br;i++)
		for(int j=ac;j<=bc;j++)
			if(!V[i][j]){

				ans++;
				while(Q.size())
					Q.pop();
				Q.push({i,j});

				while(Q.size()){

					pair<int,int> p=Q.front();
					Q.pop();
					if(V[p.first][p.second])
						continue;
					V[p.first][p.second]=true;

					for(int m=0;m<4;m++)
						if(!V[p.first+rmov[m]][p.second+cmov[m]] and ar<=p.first+rmov[m] and p.first+rmov[m]<=br and ac<=p.second+cmov[m] and p.second+cmov[m]<=bc)
							Q.push({p.first+rmov[m],p.second+cmov[m]});
						}
				}
				
			}

    return ans;
}

Compilation message (stderr)

rainbow.cpp: In function 'int colour(int, int, int, int)':
rainbow.cpp:81:4: warning: no return statement in function returning non-void [-Wreturn-type]
    }
    ^
rainbow.cpp: At global scope:
rainbow.cpp:83:5: error: expected unqualified-id before 'return'
     return ans;
     ^~~~~~
rainbow.cpp:84:1: error: expected declaration before '}' token
 }
 ^