답안 #27600

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
27600 2017-07-13T09:08:23 Z khsoo01 OGLEDALA (COI15_ogledala) C++11
41 / 100
4000 ms 107884 KB
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll N = 100005;

ll l, a[N], qry[N], _S, _E, _K;
int n, m, cur[N], _I, _C, _O;

vector<ll> v[N], dt[N];

priority_queue<pair<ll, int> > pq;

int geti (vector<ll> &V, int I, ll P) {
	for(int i=max(0,I-3);i<I;i++) if(V[i] == P) return i;
	return -1;
}

void add (vector<ll> &V, ll A) {
	if(A <= 0 || geti(V, V.size(), A) != -1) return;
	V.push_back(A);
}

void kth () {
	if(_C == _O) {printf("%lld\n",(_S+_E)/2); return;}
	ll L = _E-_S+1;
	int I1 = geti(v[_I], _C, (L-1)/2), I2 = (L/2 == (L-1)/2 ? I1 : I1+1);
	if(I1>=_O && dt[_I][I1] >= _K) {_C = I1; _E = (_S+_E)/2-1;}
	else {_C = I2; _S = (_S+_E)/2+1; _K -= (I1>=_O ? dt[_I][I1] : 0);}
	kth();
}

void calc (vector<ll> &D, vector<ll> &V, int O) {
	for(int i=0;i<O;i++) D[i] = 0;
	D[O] = 1;
	for(int i=O+1;i<V.size();i++) {
		int I1 = geti(V, i, (V[i]-1)/2), I2 = (V[i]/2 == (V[i]-1)/2 ? I1 : I1+1);
		D[i] = (I1 != -1 ? D[I1] : 0) + (I2 != -1 ? D[I2] : 0);
	}
}

int main() {
	scanf("%lld%d%d",&l,&n,&m);
	for(int i=1;i<=n;i++) scanf("%lld",&a[i]);
	a[n+1] = l+1;
	for(int i=1;i<=n+1;i++) {
		add(v[i], a[i]-a[i-1]-1);
		for(ll j=0;j<v[i].size();j++) {
			add(v[i], v[i][j]/2);
			add(v[i], (v[i][j]-1)/2);
		}
		reverse(v[i].begin(), v[i].end());
	}
	for(int i=1;i<=n+1;i++) {
		cur[i] = v[i].size();
		dt[i].resize(v[i].size());
		if(--cur[i] >= 0) {
			calc(dt[i], v[i], cur[i]);
			pq.push({v[i][cur[i]], -i});
		}
	}
	int cq = 1; ll dn = n;
	for(int i=1;i<=m;i++) {
		scanf("%lld",&qry[i]);
		if(qry[i] <= n) {
			printf("%lld\n",a[qry[i]]); cq++;
		}
	}
	while(!pq.empty()) {
		int C = -pq.top().second; ll V = dt[C][v[C].size()-1]; pq.pop();
		for(;cq <= m && qry[cq] <= dn + V; cq++) {
			_S = a[C-1]+1; _E = a[C]-1, _K = qry[cq] - dn;
			_I = C; _C = v[C].size()-1, _O = cur[C];
			kth();
		}
		if(cq > m) break; dn += V;
		if(--cur[C] >= 0) {
			calc(dt[C], v[C], cur[C]);
			pq.push({v[C][cur[C]], -C});
		}
	}
}

Compilation message

ogledala.cpp: In function 'void calc(std::vector<long long int>&, std::vector<long long int>&, int)':
ogledala.cpp:35:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=O+1;i<V.size();i++) {
                 ^
ogledala.cpp: In function 'int main()':
ogledala.cpp:47:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(ll j=0;j<v[i].size();j++) {
               ^
ogledala.cpp:42:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld%d%d",&l,&n,&m);
                            ^
ogledala.cpp:43:43: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1;i<=n;i++) scanf("%lld",&a[i]);
                                           ^
ogledala.cpp:63:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld",&qry[i]);
                        ^
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 8664 KB Output is correct
2 Correct 0 ms 8664 KB Output is correct
3 Correct 36 ms 9992 KB Output is correct
4 Correct 33 ms 10036 KB Output is correct
5 Correct 99 ms 16364 KB Output is correct
6 Correct 89 ms 16784 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 8796 KB Output is correct
2 Correct 0 ms 8796 KB Output is correct
3 Correct 353 ms 101608 KB Output is correct
4 Correct 309 ms 102748 KB Output is correct
5 Correct 369 ms 106820 KB Output is correct
6 Correct 403 ms 107884 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 2025 ms 65412 KB Output is correct
2 Correct 2139 ms 65100 KB Output is correct
3 Correct 3016 ms 95856 KB Output is correct
4 Correct 3593 ms 97476 KB Output is correct
5 Execution timed out 4000 ms 106816 KB Execution timed out
6 Halted 0 ms 0 KB -