Submission #1194996

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Source Code Expand

#include <bits/stdc++.h>
#define pb push_back
#define mp make_pair
#define fst first
#define snd second
#define fore(i,a,b) for(int i=a,ThxDem=b;i<ThxDem;++i)
using namespace std;
typedef long long ll;

vector<int> g[100005];
int q0[100005],q1[100005],q2[100005];
int c[100005];
bool v[100005][16];
int n,m,q;
queue<pair<int,int> > qq;

void bfs(int x, int d, int t){
	if(v[x][d])return;
	v[x][d]=true;
	qq.push(mp(x,d));
	while(!qq.empty()){
		x=qq.front().fst;d=qq.front().snd;qq.pop();
		if(!c[x])c[x]=t;
		if(!d)continue;
		for(int y:g[x])if(!v[y][d-1]){
			v[y][d-1]=true;qq.push(mp(y,d-1));
		}
	}
}

int main(){
	scanf("%d%d",&n,&m);
	fore(i,0,m){
		int x,y;
		scanf("%d%d",&x,&y);x--;y--;
		g[x].pb(y);g[y].pb(x);
	}
	scanf("%d",&q);
	fore(i,0,q)scanf("%d%d%d",q0+i,q1+i,q2+i),q0[i]--;
	for(int i=q-1;i>=0;--i)bfs(q0[i],q1[i],q2[i]);
	fore(i,0,n)printf("%d\n",c[i]);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:32:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&m);
                     ^
./Main.cpp:35:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&x,&y);x--;y--;
                      ^
./Main.cpp:38:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&q);
                ^
./Main.cpp:39:51: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  fore(i,0,q)scanf("%d%d%d",q0+i,q1+i,q2+i),q0[i]--;
                                                   ^

Judge Result