Submission #1195829

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
#define REP(i, n) for (int i = 0; i < int(n); ++i)
#define REPE(i, a, b) for (int i = (a); i <= int(b); ++i)
#define SZ(x) ((int)(x).size())
#define ALL(x) x.begin(), x.end()
#define PB push_back
#define EB emplace_back
using LL = long long;
using PII = pair<int, int>;
#define F first
#define S second

int n, m, q;
vector<int> g[100010];
int a[100010];
int md[100010] = {};
void f(int s, int d, int c) {
  if (!a[s]) a[s] = c;
  if (d <= md[s]) return;
  md[s] = d;
  for (int y : g[s]) f(y, d - 1, c);
}

int u[100010], d[100010], c[100010];
int main() {
  scanf("%d%d", &n, &m);
  REP(i, m) {
    int u, v;
    scanf("%d%d", &u, &v);
    g[u].PB(v);
    g[v].PB(u);
  }
  scanf("%d", &q);
  REP(i, q) {
    scanf("%d%d%d", &u[i], &d[i], &c[i]);
  }
  for (int i = q - 1; i >= 0; --i)
    f(u[i], d[i], c[i]);
  REPE(i, 1, n) printf("%d\n", a[i]);
  return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:27:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &n, &m);
                        ^
./Main.cpp:30:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &u, &v);
                          ^
./Main.cpp:34:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &q);
                  ^
./Main.cpp:36:41: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d", &u[i], &d[i], &c[i]);
                                         ^

Judge Result