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#include<iostream>
#include<queue>
#include<vector>
 
using namespace std;
 
int A[30][30];
 
void BFS(int N, int s) {
 
	vector<bool> V(N, false);
 
	queue<int> Q;
 
	Q.push(s);
 
	V[s] = true;
 
	while(!Q.empty()) {
 
		int u = Q.front();
 
		cout << u << " ";
 
		Q.pop();
 
		for(int v = 1; v <= N; v++)v {
 
			if(A[u][v]) {
 
				if(V[v] == false) {
 
					V[v] = true;
 
					Q.push(v);
 
				} 
 
			}
 
		}
 
	}
 
	coput << endl;
 
}
 
 
 
int main() {
 
	int N, M;
 
	cin >> N >> M;
	cout << N << M;
 
	for(int i = 0; i < M; i++) {
 
		int u, v;
 
		cin >> u >> v;
 
		A[u][v] = 1;
 
		A[v][u] = 1;
 
	}
 
	BFS(N, 1);
 
	return 0;
 
}	

prog.cpp: In function 'void BFS(int, int)':
prog.cpp:27:32: error: expected ';' before '{' token
   for(int v = 1; v <= N; v++)v {
                                ^
prog.cpp:74:1: error: expected '}' at end of input
 } 
 ^
prog.cpp:74:1: error: expected '}' at end of input

Standard output is empty