제출 #936920

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
936920		william950615	Advertisement 2 (JOI23_ho_t2)	C++14	0 / 100	0 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;
	set< int > st;
	REP(i,N) {
		int x, e; cin >> x >> e;
		st.insert( x );
	}
	cout<<st.size() <<'\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();
}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'int main()':
Main.cpp:40:9: warning: 'T' is used uninitialized in this function [-Wuninitialized]
   40 |  while(T--) solve();
      |        ~^~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 23
• Subtask 3: 0 / 36
• Subtask 4: 0 / 31