Submission #1006418

#	Time	Username	Problem	Language	Result	Execution time	Memory
1006418		christinelynn	Game (IOI14_game)	C++17	Compilation error	0 ms	0 KiB

game

#include<bits/stdc++.h>

/* Pragmaaa */
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")

/*  Primitive Data   */
#define ll long long
#define db double

/*  Pair Macro */
#define pii pair<int,int>
#define pll pair<ll,ll>
#define fi first
#define sc second

/* Vector Macro */
#define vi vector<int>
#define vll vector<ll>
#define pb push_back

/*  All Rounder  */
#define all(x) x.begin(),x.end()
#define forn(i,n) for(int (i) = 1; i<= int (n); i++)
#define for0(i,n) for(int (i) = 0; i < int (n); i++)

#define INF 1e9 
#define LLINF 1e18
#define nl '\n'
#define tab '	'

// Hati-hati kalau mau ngeflush tapi endl jadi nya '\n'
#define flushmanual ios_base::sync_with_stdio(false); cin.tie(NULL)

/* Modulo Fuctions */
const ll MOD = 1e9+7;

ll tambah(ll a, ll b){
  return (a+b)%MOD;
}

ll kurang(ll a, ll b){
  return (((a - b) % MOD) + MOD) % MOD;
}

ll mul(ll a, ll b){
  return ((a%MOD) * (b%MOD))%MOD;
}

/* debuggin */
#define debugl cout<<"Here\n"
#define debug(awok) cout<<(awok)<<endl

/* stuff you should look for

  * int overflow, array bounds
  * special cases (n=1?)
  * do smth instead of nothing and stay organized
  * WRITE STUFF DOWN
  * DON'T GET STUCK ON ONE APPROACH (TRY DP INSTEAD OF GREEDY AND VICE VERSA)(DONT FORGET SORTING)
  * TRY ALL STRATEGIES
  * DO NOT READ EDITORIALS BEFORE TRYING REALLY HARD!
  * careful references in recursion
  * careful copying when doing vectors esp in loops and functions
  * careful long long int and mod always OMG
  * careful return types of std such as int(ceil)
  * WATCH OUT GOING OVER MAX thru operations spam mod
  * vectors overflow arrays do NOT
  * cout endl lol
  * lower bound is first greater or equal
  * upper is first greater
  * if TLE play around with compiler
  * use static is helpful!!
  * take note of test stuff that need to be changed before submission
  * careful when u use garbage from abroad
  * careful modeling stuff as num going below 0 above n
  * number theory infinite due to multple of each other
  * careful not finding stuff in dictionaries
  * stupid cout precision and sci notations
  * in sets, rbegin() or --end() for last
  * careful multiset removal just use heapp
  * no segment trees if partial mins are needed, use sparse table
  * in combinatorics log matters esp in that dp, and think v carefully
  * NEVER INPUT DOUBLES
  * fraction class or multiplication tricks?
  * omg dont forget to flush when debugging
  * watch out for bitwise operations order of operations
  * PQ Greater top is smallest and Less top is largest
*/   

using namespace std;
ll que[2000];
void hasEdge(ll u,ll v){
  if(que[u] == 1 || que[v] == 1){
      cout << "yes"   <<nl;
      fflush(stdout);
    }else{
      cout << "no" << nl;
      fflush(stdout);
  }
}

void initialize(ll n){
  
  for0(i,n)que[i] = n-1;
  forn(i,(n*(n-1)/2)){
    ll a,b;
    cin >> a >> b;
    hasEdge(a,b);
    que[a]--;
    que[b]--;
  }
  
    
}

int main(){
  ll n;
  cin >> n;
  initialize(n);
  
}          

             

Compilation message (stderr)

game.cpp: In function 'void initialize(long long int)':
game.cpp:25:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   25 | #define for0(i,n) for(int (i) = 0; i < int (n); i++)
      |                           ^
game.cpp:105:3: note: in expansion of macro 'for0'
  105 |   for0(i,n)que[i] = n-1;
      |   ^~~~
game.cpp:24:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   24 | #define forn(i,n) for(int (i) = 1; i<= int (n); i++)
      |                           ^
game.cpp:106:3: note: in expansion of macro 'forn'
  106 |   forn(i,(n*(n-1)/2)){
      |   ^~~~
/usr/bin/ld: /tmp/cchSpuVS.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccQd35dP.o:game.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/cchSpuVS.o: in function `main':
grader.cpp:(.text.startup+0x2a): undefined reference to `initialize(int)'
/usr/bin/ld: grader.cpp:(.text.startup+0x94): undefined reference to `hasEdge(int, int)'
collect2: error: ld returned 1 exit status