Submission #701169

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
701169	2023-02-20 09:57:12	Quan2003	Swapping Cities (APIO20_swap)	C++17	0 / 100	3 ms	7508 KiB

swap

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N = 3e5 + 100;
const int INF = 1e7 + 10; 
long long n,m,q,dsz,E;
int timer = 1;
vector<int>adj[N + 1];
int fa[N + 1];
int deg[N + 1],deg1[N + 1],deg3[N + 1]; 
int up[23][N + 1],dp[N + 1],val[N + 1];
int lf[N + 1],ri[N + 1]; 
int in[N + 1],to[N + 1]; 
struct edge{
     int w,u,v;
} edges[N + 1]; 
int find(int u){
     if(u == fa[u]) return u;
     return fa[u] = find(fa[u]); 
}
void dfs_calc(int u,int p){
    to[timer] = u; 
    in[u] = timer++; 
   // if(u == 6) cout<<val[p]<<endl; 
    if(!val[u]) val[u] = val[p]; 
    for(int i = 1; i < 23 ; i++){
        up[i][u] = up[i - 1][up[i - 1][u]];
    }
    for(int i = 0; i < adj[u].size(); i++){
        int v = adj[u][i]; 
 
 
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Compilation message (stderr)

swap.cpp: In function 'void dfs_calc(int, int)':
swap.cpp:29:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |     for(int i = 0; i < adj[u].size(); i++){
      |                    ~~^~~~~~~~~~~~~~~

• Subtask 1: 0 / 6
• Subtask 2: 0 / 7
• Subtask 3: 0 / 17
• Subtask 4: 0 / 20
• Subtask 5: 0 / 23
• Subtask 6: 0 / 27