Submission #237818

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
237818	2020-06-08 23:15:45	Nucleist	One-Way Streets (CEOI17_oneway)	C++14	100 / 100	814 ms	83940 KiB

oneway

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#include <bits/stdc++.h> 
using namespace std; 
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#define flash ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
#define debug(x) cerr << " - " << #x << ": " << x << endl;
#define debugs(x, y) cerr << " - " << #x << ": " << x << " " << #y << ": " << y << endl;
#define all(x) (x).begin(),(x).end()
#define sz(x) (ll)x.size()
#define ll long long
#define INF 1000000000
#define MOD 1000000007
#define pb push_back
#define ve vector<ll>
#define dos pair<ll,ll>
#define vedos vector<dos>
#define rand mt19937 rng(chrono::steady_clock::now().time_since_epoch().count())
#define EPS 0.000001
struct greateri
{
    template<class T>
    bool operator()(T const &a, T const &b) const { return a > b; }
};
void setIO(string s) {
  ios_base::sync_with_stdio(0); cin.tie(0); 
  freopen((s+".in").c_str(),"r",stdin);
  freopen((s+".out").c_str(),"w",stdout);
}
ll tin[200001],tlow[200001],vis[200001],vis1[200001],dep[200001],pa[200001][30];
 
 
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Compilation message (stderr)

oneway.cpp:4:0: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
 #pragma GCC optimization ("O3")
 
oneway.cpp:5:0: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
 #pragma GCC optimization ("unroll-loops")
 
oneway.cpp: In function 'long long int decompose(long long int, long long int)':
oneway.cpp:122:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^
oneway.cpp: In function 'void add(long long int, long long int)':
oneway.cpp:125:13: warning: statement has no effect [-Wunused-value]
     for (idx; idx <= n; idx += idx & -idx)
             ^
oneway.cpp: In function 'long long int point_query(long long int)':
oneway.cpp:136:13: warning: statement has no effect [-Wunused-value]
     for (idx; idx > 0; idx -= idx & -idx)
             ^
oneway.cpp: In function 'void query(long long int, long long int, long long int)':
oneway.cpp:141:8: warning: unused variable 'res' [-Wunused-variable]
     ll res = 0;
        ^~~
oneway.cpp: In function 'int main()':
oneway.cpp:237:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (ll i = 0; i < ed.size(); ++i)
                  ~~^~~~~~~~~~~
oneway.cpp: In function 'void setIO(std::__cxx11::string)':
oneway.cpp:27:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   freopen((s+".in").c_str(),"r",stdin);
   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
oneway.cpp:28:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   freopen((s+".out").c_str(),"w",stdout);
   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 30 / 30
• Subtask 2: 30 / 30
• Subtask 3: 40 / 40