Submission #16391

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
16391	2015-08-22 08:26:38	comet	Parachute rings (IOI12_rings)	C++98	100 / 100	1938 ms	90792 KiB

rings

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#include<iostream>
#include<cstdio>
#include<algorithm>
#include<vector>
#include<queue>
#define pb push_back
using namespace std;
typedef vector<int> vec;
typedef vector<vec> mat;
int N,mode;
mat path;
int degree[4][1000000];
struct disjoint{
    vec p;
  void init(int n){
    p=vec(n);
        for(int i=0;i<n;i++)p[i]=i;
    }
    int find(int x){
        int v=x;
        while(p[v]!=v)v=p[v];
        while(p[x]!=x){
            p[x]=v;
            x=p[x];
        }
        return v;
    }
    bool merge(int x,int y){
        x=find(x),y=find(y);
        if(x==y)return 0;
 
 
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Compilation message (stderr)

rings.cpp: In function 'void make_graph(int, int)':
rings.cpp:97:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
         if(x==i)continue;
         ^~
rings.cpp:99:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   int ok=0;
   ^~~
rings.cpp:100:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j=0;j<path[i].size();j++){
                     ~^~~~~~~~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 17 / 17
• Subtask 3: 18 / 18
• Subtask 4: 14 / 14
• Subtask 5: 31 / 31