Submission #1604037

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Source Code Expand

#include <stdio.h>
#include <string.h>
#include <string>
#include <algorithm>
#include <map>
#include <set>
#include <vector>
#include <iostream>
using namespace std;

class query {
public:
	int a, d, c;
	query () {
		a = d = c = 0;
	}
	query (int _a, int _d, int _c) {
		a = _a;
		d = _d;
		c = _c;
	}
};

bool vis[101010][11];
int col[101010];
vector <vector <int> > v;

void dfs (int ind, int d, int c) {
	bool paint = true;
	for (int i=0;i<=d;i++) {
		if (vis[ind][i]) {
			paint = false;
			break;
		}
	}
	for (int i=d;i<11;i++) {
		if (vis[ind][i]) {
			return;
		}
	}
	vis[ind][d] = true;
	if (paint)
		col[ind] = c;
	if (!d) {
		return;
	}

	for (int i=0;i<v[ind].size();i++) {
		dfs(v[ind][i], d-1, c);
	}
}

int main () {
	int n, m;
	scanf ("%d %d", &n, &m);
	v.resize(n);

	int a ,b;
	for (int i=0;i<m;i++) {
		scanf ("%d %d", &a, &b);
		a --, b --;
		v[a].push_back(b);
		v[b].push_back(a);
	}

	int q, d, c;
	vector <query> vq;
	scanf ("%d", &q);

	for (int i=0;i<q;i++) {
		scanf ("%d %d %d", &a, &d, &c);
		vq.push_back(query(a-1, d, c));
	}
	reverse(vq.begin(),vq.end());
	for (int i=0;i<vq.size();i++) {
		dfs(vq[i].a, vq[i].d, vq[i].c);
	}

	for (int i=0;i<n;i++) {
		printf ("%d\n", col[i]);
	}

	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:55:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf ("%d %d", &n, &m);
                         ^
./Main.cpp:60:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf ("%d %d", &a, &b);
                          ^
./Main.cpp:68:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf ("%d", &q);
                  ^
./Main.cpp:71:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf ("%d %d %d", &a, &d, &c);
                                 ^

Judge Result