Submission #936916

#	Time	Username	Problem	Language	Result	Execution time	Memory
936916		william950615	Stone Arranging 2 (JOI23_ho_t1)	C++14	0 / 100	1 ms	348 KiB

Main

#include<bits/stdc++.h>
using namespace std;
#define F first
#define S second
#define mkp make_pair
#define MEM(x) memset(x,0,sizeof(x))
#define ALL(x) begin(x), end(x)
#define PH push
#define PB push_back
#define REP(i,N) for( int i = 0; i <(N); ++i )
#define FOR(i,a,b) for( int i = (a); i <= (b); ++i )

typedef long long ll;
typedef pair<ll,ll> pll;
typedef pair<int,int> pii;
template<typename T>
using V = vector<T>;

void solve() {
	int N; cin >> N;
	map< int ,int > cnt;
	V<pii> vc;

	FOR(i,1,N) {
		int a; cin >> a;
		if( cnt[ a ] != 0 ) {
			while( vc.back().F != a ) {
				cnt[ vc.back().F ] --;
				vc.pop_back();
			}
		}
		else {
			cnt[ a ]++;
			vc.PB( mkp(a,i) );
		}
	}

	int l = 0;
	FOR(i,1,N) {
		if( l+1<vc.size() && vc[l+1].S == i )
			++l;
		cout << vc[l].F << '\n';
	}
}

int main () {
	int T;
#ifdef LOCAL
	freopen( "input.txt", "r", stdin );
	freopen( "output.txt", "w", stdout );
	cin >> T;
#else
	ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#endif
	while(T--) solve();
}

Compilation message (stderr)

Main.cpp: In function 'void solve()':
Main.cpp:40:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int>, std::allocator<std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |   if( l+1<vc.size() && vc[l+1].S == i )
      |       ~~~^~~~~~~~~~
Main.cpp: In function 'int main()':
Main.cpp:55:9: warning: 'T' is used uninitialized in this function [-Wuninitialized]
   55 |  while(T--) solve();
      |        ~^~

• Subtask 1: 0 / 25
• Subtask 2: 0 / 35
• Subtask 3: 0 / 40