Submission #1194673

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Source Code Expand

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <memory.h>
#include <math.h>
#include <assert.h>
#include <queue>
#include <map>
#include <set>
#include <string>
#include <algorithm>
#include <iostream>
#include <functional>
#include <unordered_map>
#include <unordered_set>
#include <list>
#include <bitset>

using namespace std;
typedef pair<int, int> Pi;
typedef long long ll;
#define pii Pi
#define pll PL
#define Fi first
#define Se second
#define pb(x) push_back(x)
#define sz(x) ((int)(x).size())
#define rep(i, n) for(int i=0;i<n;i++)
#define all(x) (x).begin(), (x).end()
typedef tuple<int, int, int> t3;
typedef pair<ll, ll> PL;
typedef long double ldouble;

int n, m, q;
vector <int> E[100010];
int Q[100010][3];

int D[100010];
int color[100010];

void dfs(int v, int d, int c){
	if(D[v] >= c)return;
	D[v] = c;
	if(color[v] == 0)color[v] = c;
	if(d == 0)return;
	for(int e : E[v]){
		dfs(e, d-1, c);
	}
}

void solve(){
	scanf("%d%d", &n, &m);
	rep(i, m){
		int x, y; scanf("%d%d", &x, &y);
		E[x].pb(y);
		E[y].pb(x);
	}
	scanf("%d", &q);
	rep(i, q){
		rep(j, 3)scanf("%d", Q[i]+j);
	}
	for(int i=q-1;i>=0;i--){
		int v = Q[i][0], d = Q[i][1], c = Q[i][2];
		dfs(v, d, c);
	}
	
	for(int i=1;i<=n;i++)printf("%d\n", color[i]);
}

int main(){
	int Tc = 1; // scanf("%d\n", &Tc);
	for(int tc=1;tc<=Tc;tc++){
		solve();
	}
}

Submission Info

Compile Error

./Main.cpp: In function ‘void solve()’:
./Main.cpp:52:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &m);
                       ^
./Main.cpp:54:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   int x, y; scanf("%d%d", &x, &y);
                                  ^
./Main.cpp:58:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &q);
                 ^
./Main.cpp:60:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   rep(j, 3)scanf("%d", Q[i]+j);
                               ^

Judge Result