Submission #179650

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
179650	2020-01-08 10:39:11	Ruxandra985	Railway (BOI17_railway)	C++14	100 / 100	297 ms	46280 KiB

railway

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#include <bits/stdc++.h>
#define DIMN 100010
using namespace std;
int eul[5*DIMN],nv[5*DIMN],first[DIMN];
int d[20][5*DIMN] , el , elem, st[DIMN] , ed[DIMN] , sp[DIMN] , idk[DIMN] , ok[DIMN];
int lg[5*DIMN] , fth[DIMN];
vector <int> v[DIMN];
map <pair <int,int> , int> nr_mch;
void dfs (int nod , int tt ,int niv){
    int i,vecin;
    fth[nod] = tt;
    eul[++elem]=nod;
    nv[elem] = niv;
    first[nod] = elem; /// prima poz;
    for (i=0;i<v[nod].size();i++){
        vecin=v[nod][i];
        if (vecin != tt){
            dfs(vecin , nod ,niv+1);
            eul[++elem]=nod;
            nv[elem]=niv;
        }
    }
    ed[nod] = elem; /// pana la elem e intervalul
}
int query (int x,int y){
    int px,py,len;
    px=first[x];
    py=first[y];
    /// minimul din intervalul px py
 
 
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Compilation message (stderr)

railway.cpp: In function 'void dfs(int, int, int)':
railway.cpp:15:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i=0;i<v[nod].size();i++){
              ~^~~~~~~~~~~~~~
railway.cpp: In function 'void dfs_sp(int, int)':
railway.cpp:48:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i=0;i<v[nod].size();i++){
              ~^~~~~~~~~~~~~~
railway.cpp: In function 'int main()':
railway.cpp:63:12: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     fscanf (fin,"%d%d%d",&n,&m,&frc);
     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
railway.cpp:65:16: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         fscanf (fin,"%d%d",&x,&y);
         ~~~~~~~^~~~~~~~~~~~~~~~~~
railway.cpp:93:16: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         fscanf (fin,"%d",&nr);
         ~~~~~~~^~~~~~~~~~~~~~
railway.cpp:96:20: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             fscanf (fin,"%d",&idk[j]);
             ~~~~~~~^~~~~~~~~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 15 / 15
• Subtask 3: 7 / 7
• Subtask 4: 29 / 29
• Subtask 5: 16 / 16
• Subtask 6: 25 / 25