제출 #341207

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
341207		YJU	Arranging Shoes (IOI19_shoes)	C++14	컴파일 에러	0 ms	0 KiB

shoes

#include<bits/stdc++.h>
#pragma GCC optimize("unroll-loops,no-stack-protector")
using namespace std;
typedef int ll;
typedef long double ld;
typedef pair<ll,ll> pll;
const ll MOD=1e9+7;
const ll MOD2=998244353;
const ll N=1e5+5;
const ll K=350;
const ld pi=acos(-1);
const ll INF=(1LL<<60);
#define SQ(i) ((i)*(i))
#define REP(i,n) for(ll i=0;i<n;i++)
#define REP1(i,n) for(ll i=1;i<=n;i++)
#define pb push_back
#define mp make_pair
#define X first
#define Y second
#define setp setprecision
#define lwb lower_bound
#define SZ(_a) (ll)_a.size()

ll bit[N];

void ins(ll id,ll del){
	++id;
	for(;id;id+=(id&-id)){
		bit[id]+=del;
	}
}

ll q(ll id){
	++id;
	ll sum=0;
	for(;;id-=(id&-id)){
		sum+=bit[id];
	}
	return sum;
}

long long count_swaps(vector<int> s){
	long long ans=0;
	lln=SZ(s);
	map<ll,queue<ll> > m;
	REP(i,n){
		if(SZ(m[-s[i]])){
			ans-=(q(i)-q(m[-s[i]].front()));
			ans+=i-m[-s[i]].front()-1+(s[i]<0?1:0);
			ins(m[-s[i]].front(),-1);
			m[-s[i]].pop();
		}else{
			ins(i,1);
			m[s[i]].push(i);
		}
	}
	return ans;
}

컴파일 시 표준 에러 (stderr) 메시지

shoes.cpp:12:18: warning: overflow in conversion from 'long long int' to 'll' {aka 'int'} changes value from '1152921504606846976' to '0' [-Woverflow]
   12 | const ll INF=(1LL<<60);
      |              ~~~~^~~~~
shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:44:2: error: 'lln' was not declared in this scope; did you mean 'll'?
   44 |  lln=SZ(s);
      |  ^~~
      |  ll
shoes.cpp:46:8: error: 'n' was not declared in this scope
   46 |  REP(i,n){
      |        ^
shoes.cpp:14:31: note: in definition of macro 'REP'
   14 | #define REP(i,n) for(ll i=0;i<n;i++)
      |                               ^