Submission #125757

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
125757	2019-07-06 10:15:35	zeyad49	Mountains (IOI17_mountains)	C++17	0 / 100	2 ms	376 KiB

mountains

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#include <bits/stdc++.h>
using namespace std;
const int M=500;
const int N=2000;
struct struct_edge{int v;struct_edge* n;};
typedef struct_edge* edge;
struct_edge pool[M*M*2];
edge top=pool,adj[M];
int V,E,match[M],qh,qt,q[M],father[M],base[M];
bool inq[M],inb[M],ed[M][M];
void add_edge(int u,int v)
{
  top->v=v,top->n=adj[u],adj[u]=top++;
  top->v=u,top->n=adj[v],adj[v]=top++;
}
int LCA(int root,int u,int v)
{
  static bool inp[M];
  memset(inp,0,sizeof(inp));
  while(1)
    {
      inp[u=base[u]]=true;
      if (u==root) break;
      u=father[match[u]];
    }
  while(1)
    {
      if (inp[v=base[v]]) return v;
      else v=father[match[v]];
 
 
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Compilation message (stderr)

mountains.cpp: In function 'int find_augmenting_path(int)':
mountains.cpp:73:7: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else]
    if (base[u]!=base[v]&&match[u]!=v)
       ^

• Subtask 1: 0 / 20
• Subtask 2: 0 / 20
• Subtask 3: 0 / 30
• Subtask 4: 0 / 30