Submission #1154339

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1154339	2025-02-20 16:42:12	modwwe	Longest Trip (IOI23_longesttrip)	C++20	Compilation error	0 ms	0 KiB

longesttrip

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//#include "gap.h"
//#include "mushrooms.h"
//#include "island.h"
#pragma GCC optimize("Ofast,unroll-loops")
#include<bits/stdc++.h>
//#define int   long long
#define ll long long
#define down cout<<'\n';
#define debug cout<<" cucuucucuuu",down
#define modwwe  int t;cin>>t; while(t--)
#define bit(i,j) (i>>j&1)
#define sobit(a) __builtin_popcountll(a)
#define task2 "ftree"
#define task "test"
#define fin(x) freopen(x".inp","r",stdin)
#define fou(x) freopen(x".out","w",stdout)
#define pb push_back
#define mask(k) (1<<k)
#define checktime   cerr << (double)clock() / CLOCKS_PER_SEC * 1000  << " ms";
using namespace std;
#define getchar_unlocked getchar
mt19937 rd(chrono::steady_clock::now().time_since_epoch().count());
int rand(int l,int r)
{
    return uniform_int_distribution<int>(l,r)(rd);
}
void phongbeo();
const int inf = 1e16;
const ll mod2 = 1e9+7;
const ll base=67;
 
 
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Compilation message (stderr)

longesttrip.cpp:28:17: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+16' to '2147483647' [-Woverflow]
   28 | const int inf = 1e16;
      |                 ^~~~
longesttrip.cpp:36:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   36 | main()
      | ^~~~
longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:84:12: error: 'are_connected' was not declared in this scope; did you mean 'SYS_connect'?
   84 |         if(are_connected({v.back()}, {i}))
      |            ^~~~~~~~~~~~~
      |            SYS_connect
longesttrip.cpp:102:8: error: 'are_connected' was not declared in this scope; did you mean 'SYS_connect'?
  102 |     if(are_connected(v,v2))
      |        ^~~~~~~~~~~~~
      |        SYS_connect
longesttrip.cpp: In function 'int main()':
longesttrip.cpp:15:23: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 | #define fin(x) freopen(x".inp","r",stdin)
      |                ~~~~~~~^~~~~~~~~~~~~~~~~~~
longesttrip.cpp:40:9: note: in expansion of macro 'fin'
   40 |         fin(task2);
      |         ^~~
longesttrip.cpp:16:23: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 | #define fou(x) freopen(x".out","w",stdout)
      |                ~~~~~~~^~~~~~~~~~~~~~~~~~~~
longesttrip.cpp:41:9: note: in expansion of macro 'fou'
   41 |         fou(task2);
      |         ^~~
longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:179:1: warning: control reaches end of non-void function [-Wreturn-type]
  179 | }/*
      | ^