Submission #343112

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
343112	2021-01-03 12:22:52	urd05	Village (BOI20_village)	C++14	100 / 100	215 ms	91492 KiB

Village

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#include <bits/stdc++.h>
using namespace std;
vector<int> adj[100000];
vector<int> son[100000];
int dp0[100000];
int dp1[100000];
int p[100000];
int group[100000];
int save[100000];
int nxt[100000];
int nxt2[100000];
int sz[100000];
typedef pair<int,int> P;
void dfs(int v,int prev) {
    p[v]=prev;
    sz[v]=1;
    for(int i=0;i<adj[v].size();i++) {
        int nt=adj[v][i];
        if (nt!=prev) {
            son[v].push_back(nt);
            dfs(nt,v);
            sz[v]+=sz[nt];
        }
    }
    for(int i=0;i<son[v].size();i++) {
        int nt=son[v][i];
        dp1[v]+=max(dp0[nt],dp1[nt]);
    }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

Village.cpp: In function 'void dfs(int, int)':
Village.cpp:19:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |     for(int i=0;i<adj[v].size();i++) {
      |                 ~^~~~~~~~~~~~~~
Village.cpp:27:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     for(int i=0;i<son[v].size();i++) {
      |                 ~^~~~~~~~~~~~~~
Village.cpp:33:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |     for(int i=0;i<son[v].size();i++) {
      |                 ~^~~~~~~~~~~~~~
Village.cpp: In function 'void dfs2(int, int)':
Village.cpp:52:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |         for(int i=0;i<son[v].size();i++) {
      |                     ~^~~~~~~~~~~~~~
Village.cpp:59:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |         for(int i=0;i<son[v].size();i++) {
      |                     ~^~~~~~~~~~~~~~
Village.cpp:73:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   73 |         for(int i=0;i<son[v].size();i++) {
      |                     ~^~~~~~~~~~~~~~
Village.cpp: In function 'int getcent(int, int, int)':
Village.cpp:86:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   86 |     for(int i=0;i<adj[v].size();i++) {
      |                 ~^~~~~~~~~~~~~~
Village.cpp: In function 'void psh(int, int)':
Village.cpp:102:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  102 |     for(int i=0;i<son[v].size();i++) {
      |                 ~^~~~~~~~~~~~~~
Village.cpp: In function 'void dfs_sz(int, int)':
Village.cpp:109:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  109 |     for(int i=0;i<adj[v].size();i++) {
      |                 ~^~~~~~~~~~~~~~
Village.cpp: In function 'int main()':
Village.cpp:145:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  145 |     for(int i=0;i<son[cent].size();i++) {
      |                 ~^~~~~~~~~~~~~~~~~
Village.cpp:121:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  121 |     scanf("%d",&n);
      |     ~~~~~^~~~~~~~~
Village.cpp:128:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  128 |         scanf("%d %d",&u,&v);
      |         ~~~~~^~~~~~~~~~~~~~~

• Subtask 1: 12 / 12
• Subtask 2: 38 / 38
• Subtask 3: 50 / 50