oj.uz

Submission #25246

# Submission time Handle Problem Language Result Execution time Memory
25246 2017-06-21T04:26:38 Z 김동현(#1058) Secret (JOI14_secret) C++14
0 / 100
 616 ms 5276 KB 
#include "secret.h"
#include <cstdio>

const int sz = 1024;
struct Seg{
	int dat[2 * sz], lch[2 * sz][10], rch[2 * sz][10];
	void ini(int n, int a[]){
		for(int i = 0; i < n; i++) dat[i + sz] = lch[i + sz][0] = rch[i + sz][0] = a[i];
		for(int i = sz - 1; i >= 1; i--){
			dat[i] = Secret(dat[2 * i], dat[2 * i + 1]);
			if(i == 1) break;
			lch[i][0] = rch[i][0] = dat[i];
			for(int j = 1, t = 2 * i - 1; t < 2 * sz; j++, t = 2 * t - 1){
				lch[i][j] = Secret(dat[t], lch[i][j - 1]);
			}
			for(int j = 1, t = 2 * i + 2; t < 2 * sz; j++, t = 2 * t + 2){
				rch[i][j] = Secret(rch[i][j - 1], dat[t]);
			}
		}
	}
	int get(int s, int e){
		int lc = -1, rc = -1, ln, rn;
		for(s += sz, e += sz; s <= e; s /= 2, e /= 2){
			if(s % 2 == 1){ lc++; ln = s++; }
			if(e % 2 == 0){ rc++; rn = e--; }
		}
		if(lc == -1) return rch[rn][rc];
		if(rc == -1) return lch[ln][lc];
		return Secret(lch[ln][lc], rch[rn][rc]);
	}
} S;

void Init(int N, int A[]) {
	S.ini(N, A);
}

int Query(int L, int R) {
	return S.get(L, R);
}

Compilation message

secret.cpp: In function 'int Query(int, int)':
secret.cpp:27:33: warning: 'rn' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if(lc == -1) return rch[rn][rc];
                                 ^
secret.cpp:22:29: note: 'rn' was declared here
   int lc = -1, rc = -1, ln, rn;
                             ^

Subtask #1
0.0 / 100.0

# Verdict Execution time Memory Grader output
1 Incorrect 156 ms 5276 KB Wrong Answer: Query(113, 206) - expected : 536899947, actual : 5334504.
2 Incorrect 163 ms 5276 KB Wrong Answer: Query(60, 375) - expected : 669221184, actual : 546930944.
3 Incorrect 163 ms 5276 KB Wrong Answer: Query(211, 401) - expected : 674373968, actual : 70674810.
4 Incorrect 599 ms 5276 KB Wrong Answer: Query(90, 497) - expected : 397934825, actual : 112771743.
5 Incorrect 616 ms 5276 KB Wrong Answer: Query(587, 915) - expected : 752404486, actual : 647659870.
6 Incorrect 603 ms 5276 KB Wrong Answer: Query(888, 892) - expected : 825894562, actual : 833275802.
7 Incorrect 609 ms 5276 KB Wrong Answer: Query(84, 976) - expected : 742463504, actual : 261096528.
8 Incorrect 609 ms 5276 KB Wrong Answer: Query(58, 987) - expected : 20022464, actual : 164739416.
9 Incorrect 613 ms 5276 KB Wrong Answer: Query(33, 967) - expected : 676869696, actual : 165554286.
10 Incorrect 616 ms 5276 KB Wrong Answer: Query(116, 961) - expected : 68487362, actual : 71657921.