Submission #114450

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
114450	2019-06-01 11:46:53	mosesmayer	Race (IOI11_race)	C++17	100 / 100	414 ms	60620 KiB

race

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#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include "race.h"
#define fi first
#define se second
using namespace std;
using namespace __gnu_pbds;
typedef vector<int> vi;
typedef pair<int,int> pii;
const int MXN = 1e6;
const int mxsz = 2e5 + 3;
int n, k;
vector<pii> adj[mxsz];
int sz[mxsz], dep[mxsz], bc[mxsz], in[mxsz], out[mxsz], flat[mxsz];
long long dist[mxsz];
gp_hash_table<long long, int> sack;
void getsz(int u, int prv = -1){
  static int tme = 0;
  in[u] = ++tme; flat[tme] = u;
  sz[u] = 1;
  for (int i = 0, nx, w; i < adj[u].size(); i++){
    nx = adj[u][i].fi; w = adj[u][i].se;
    if (nx == prv) continue;
    dep[nx] = dep[u] + 1;
    dist[nx] = dist[u] + w;
    getsz(nx, u);
    sz[u] += sz[nx];
 
 
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Compilation message (stderr)

race.cpp: In function 'void getsz(int, int)':
race.cpp:24:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0, nx, w; i < adj[u].size(); i++){
                         ~~^~~~~~~~~~~~~~~
race.cpp: In function 'void dfs(int, int, bool)':
race.cpp:39:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0, nx; i < adj[u].size(); i++){
                      ~~^~~~~~~~~~~~~~~
race.cpp:55:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0, nx, w; i < adj[u].size(); i++){
                         ~~^~~~~~~~~~~~~~~
race.cpp:55:22: warning: unused variable 'w' [-Wunused-variable]
  for (int i = 0, nx, w; i < adj[u].size(); i++){
                      ^

• Subtask 1: 9 / 9
• Subtask 2: 12 / 12
• Subtask 3: 22 / 22
• Subtask 4: 57 / 57