Submission #374050

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
374050	2021-03-06 13:51:05	denkendoemeer	Synchronization (JOI13_synchronization)	C++14	100 / 100	405 ms	32236 KiB

synchronization

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#include<bits/stdc++.h>
#define ll long long
const int inf=1e9;
using namespace std;
int x[100005],y[100005],z[100005],l[100005],in[100005],out[100005],c[100005],aib[100005];
vector<int>g[100005],s[100005];
int n,u,m,q;
void update(int poz,int val)
{
    while(poz<=n){
        aib[poz]+=val;
        poz+=poz&-poz;
    }
}
int query(int poz)
{
    int sum=0;
    while(poz){
        sum+=aib[poz];
        poz-=poz&-poz;
    }
    return sum;
}
void dfs(int nod,int t)
{
    s[nod].emplace_back(t);
    in[nod]=++u;
    int i;
    for(i=0;i<s[s[nod][i]].size();i++)
        s[nod].emplace_back(s[s[nod][i]][i]);
 
 
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Compilation message (stderr)

synchronization.cpp: In function 'void dfs(int, int)':
synchronization.cpp:29:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |     for(i=0;i<s[s[nod][i]].size();i++)
      |             ~^~~~~~~~~~~~~~~~~~~~
synchronization.cpp: In function 'int calc(int)':
synchronization.cpp:41:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |         if (i<s[nod].size() && x==query(in[s[nod][i]]))
      |             ~^~~~~~~~~~~~~~
synchronization.cpp: In function 'int main()':
synchronization.cpp:50:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   50 |     scanf("%d%d%d",&n,&m,&q);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~
synchronization.cpp:52:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   52 |         scanf("%d%d",&x[i],&y[i]);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~
synchronization.cpp:64:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   64 |         scanf("%d",&a);
      |         ~~~~~^~~~~~~~~
synchronization.cpp:82:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   82 |         scanf("%d",&a);
      |         ~~~~~^~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 10 / 10
• Subtask 4: 20 / 20
• Subtask 5: 40 / 40