oj.uz

Submission #115985

# Submission time Handle Problem Language Result Execution time Memory
115985 2019-06-10T06:35:24 Z ckodser Senior Postmen (BOI14_postmen) C++14
55 / 100
 500 ms 55756 KB 
#include<bits/stdc++.h>

#define ll int
#define pb push_back
#define mp make_pair
#define ld long double
#define F first
#define S second
#define pii pair<ll,ll> 

using namespace :: std;

const ll mod=1e9+7;
const ll maxn=5e5+500;
const ll inf=1e9+900;

vector<ll> ger[maxn];
ll s[maxn];
ll t[maxn];
bool vis[maxn];
ll l[maxn];
vector<ll> ans;
bool inAns[maxn];

void dfs(ll a){
    while(l[a]<ger[a].size()){
	if(vis[ger[a][l[a]]]){
	    l[a]++;
	}else{
	    ll e=ger[a][l[a]];
	    vis[e]=1;
	    dfs(s[e]^t[e]^a);
	}
    }
    if(inAns[a]){
	while(ans.back()!=a){
	    printf("%d ",ans.back());
	    inAns[ans.back()]=0;
	    ans.pop_back();
	}
	printf("%d\n",a);
    }else{
        ans.pb(a);
	inAns[a]=1;
    }
}
int main(){
    ll n,m;
    scanf("%d%d",&n,&m);
    for(ll i=0;i<m;i++){
	scanf("%d%d",&s[i],&t[i]);
	ger[s[i]].pb(i);
	ger[t[i]].pb(i);
    }
    dfs(1);
}

Compilation message

postmen.cpp: In function 'void dfs(int)':
postmen.cpp:26:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     while(l[a]<ger[a].size()){
           ~~~~^~~~~~~~~~~~~~
postmen.cpp: In function 'int main()':
postmen.cpp:49:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&n,&m);
     ~~~~~^~~~~~~~~~~~~~
postmen.cpp:51:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&s[i],&t[i]);
  ~~~~~^~~~~~~~~~~~~~~~~~~~

Subtask #1
38.0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 12032 KB Output is correct
2 Correct 11 ms 12032 KB Output is correct
3 Correct 15 ms 12032 KB Output is correct
4 Correct 15 ms 12308 KB Output is correct
5 Correct 12 ms 12160 KB Output is correct
6 Correct 17 ms 12288 KB Output is correct
7 Correct 18 ms 13056 KB Output is correct
8 Correct 15 ms 12288 KB Output is correct
9 Correct 54 ms 17400 KB Output is correct
10 Correct 16 ms 12288 KB Output is correct
11 Correct 14 ms 12340 KB Output is correct
12 Correct 59 ms 17684 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 12032 KB Output is correct
2 Correct 11 ms 12160 KB Output is correct
3 Correct 12 ms 12032 KB Output is correct
4 Correct 16 ms 12288 KB Output is correct
5 Correct 11 ms 12160 KB Output is correct
6 Correct 14 ms 12416 KB Output is correct
7 Correct 24 ms 12928 KB Output is correct
8 Correct 15 ms 12288 KB Output is correct
9 Correct 52 ms 17400 KB Output is correct
10 Correct 14 ms 12288 KB Output is correct
11 Correct 15 ms 12288 KB Output is correct
12 Correct 58 ms 17724 KB Output is correct
13 Correct 97 ms 20852 KB Output is correct
14 Correct 102 ms 18168 KB Output is correct
15 Correct 89 ms 19312 KB Output is correct
16 Correct 127 ms 20852 KB Output is correct
17 Correct 115 ms 16516 KB Output is correct
18 Correct 93 ms 18808 KB Output is correct

Subtask #3
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 12032 KB Output is correct
2 Correct 12 ms 12160 KB Output is correct
3 Correct 11 ms 12160 KB Output is correct
4 Correct 13 ms 12288 KB Output is correct
5 Correct 17 ms 12136 KB Output is correct
6 Correct 14 ms 12288 KB Output is correct
7 Correct 17 ms 12928 KB Output is correct
8 Correct 12 ms 12288 KB Output is correct
9 Correct 52 ms 17528 KB Output is correct
10 Correct 14 ms 12288 KB Output is correct
11 Correct 13 ms 12288 KB Output is correct
12 Correct 58 ms 17656 KB Output is correct
13 Correct 108 ms 20852 KB Output is correct
14 Correct 94 ms 18168 KB Output is correct
15 Correct 92 ms 19288 KB Output is correct
16 Correct 99 ms 20852 KB Output is correct
17 Correct 102 ms 16580 KB Output is correct
18 Correct 90 ms 18912 KB Output is correct
19 Execution timed out 579 ms 55756 KB Time limit exceeded
20 Halted 0 ms 0 KB -