Submission #1195353

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Source Code Expand

#include <bits/stdc++.h>
#define LL long long
#define pb push_back
#define mp make_pair
#define fi first
#define sc second
using namespace std;

typedef pair<int,int> ii;
typedef pair<int,ii> iii;
iii query[100100];
int n,m,x,y,d[100100],mark[100100];
vector<int> graph[100100];
bool vis[100100];
vector<int> v;


int main() {
	scanf("%d %d",&n,&m);
	for(int i=0;i<m;i++){
		scanf("%d %d",&x,&y);
		graph[x].pb(y);
		graph[y].pb(x);
	}
	int qq;
	scanf("%d",&qq);
	for(int i=0;i<qq;i++){
		scanf("%d %d %d",&query[i].fi, &query[i].sc.fi, &query[i].sc.sc);
	}
	queue<int> q;
	for(int i=qq-1;i>=0;i--){
		x = query[i].fi;
		q.push(x);
		while(v.size()) vis[v[v.size()-1]] = 0, v.pop_back();
		d[x] = 0;
		vis[x] = 1;
		while(!q.empty()){
			x = q.front();
			if(!mark[x]) mark[x] = query[i].sc.sc;
			v.pb(x);
			q.pop();
			for(int j=0;j<graph[x].size();j++){
				y = graph[x][j];
				if(!vis[y] && d[x]+1<=query[i].sc.fi){
					vis[y] = 1;
					d[y] = d[x]+1;
					q.push(y);
				}
			}
		}
	}
	for(int i=1;i<=n;i++) cout<<mark[i]<<endl;
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:19:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d",&n,&m);
                      ^
./Main.cpp:21:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d",&x,&y);
                       ^
./Main.cpp:26:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&qq);
                 ^
./Main.cpp:28:67: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d %d",&query[i].fi, &query[i].sc.fi, &query[i].sc.sc);
                                                                   ^

Judge Result