Submission #860461


Source Code Expand

Copy
#include <cstdio>
#include <algorithm>
#include <string>

using namespace std;

int n, l, q, h[100010], dt[20][100010];

int main()
{
    scanf("%d", &n);
    for(int i = 1 ; i <= n ; i++ ) scanf("%d", h+i);
    scanf("%d%d", &l, &q);
    for(int i = 1 ; i <= n ; i++ )
        dt[0][i] = (int)(upper_bound(h+1, h+n+1, h[i]+l) - h) - 1;
    for(int j = 1 ; j < 20 ; j++ ) for(int i = 1 ; i <= n ; i++ )
        dt[j][i] = dt[j-1][dt[j-1][i]];
    while( q-- )
    {
        int a, b, cnt = 0, d;
        scanf("%d%d", &a, &b);
        if( a > b ) swap(a, b);
        for(int i = 19 ; i >= 0 ; i-- )
        {
            if( dt[i][a] < b )
            {
                cnt += (1<<i);
                a = dt[i][a];
            }
        }
        printf("%d\n", cnt+1);
    }
    return 0;
}

Submission Info

Submission Time
Task E - Tak and Hotels
User JKJeong
Language C++14 (GCC 5.4.1)
Score 700
Code Size 826 Byte
Status AC
Exec Time 152 ms
Memory 8960 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:11:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
                    ^
./Main.cpp:12:52: 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("%d", h+i);
                                                    ^
./Main.cpp:13:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &l, &q);
                          ^
./Main.cpp:21:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d", &a, &b);
                              ^

Judge Result

Set Name Sample Subtask1 All
Score / Max Score 0 / 0 200 / 200 500 / 500
Status
AC × 1
AC × 14
AC × 27
Set Name Test Cases
Sample example_01.txt
Subtask1 example_01.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt
All example_01.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask2_01.txt, subtask2_02.txt, subtask2_03.txt, subtask2_04.txt, subtask2_05.txt, subtask2_06.txt, subtask2_07.txt, subtask2_08.txt, subtask2_09.txt, subtask2_10.txt, subtask2_11.txt, subtask2_12.txt, subtask2_13.txt
Case Name Status Exec Time Memory
example_01.txt AC 2 ms 256 KB
subtask1_01.txt AC 2 ms 256 KB
subtask1_02.txt AC 2 ms 256 KB
subtask1_03.txt AC 3 ms 256 KB
subtask1_04.txt AC 3 ms 256 KB
subtask1_05.txt AC 3 ms 384 KB
subtask1_06.txt AC 3 ms 256 KB
subtask1_07.txt AC 3 ms 256 KB
subtask1_08.txt AC 3 ms 384 KB
subtask1_09.txt AC 3 ms 384 KB
subtask1_10.txt AC 3 ms 256 KB
subtask1_11.txt AC 3 ms 384 KB
subtask1_12.txt AC 3 ms 384 KB
subtask1_13.txt AC 3 ms 256 KB
subtask2_01.txt AC 143 ms 8832 KB
subtask2_02.txt AC 150 ms 8960 KB
subtask2_03.txt AC 135 ms 8704 KB
subtask2_04.txt AC 70 ms 5760 KB
subtask2_05.txt AC 90 ms 5888 KB
subtask2_06.txt AC 111 ms 8576 KB
subtask2_07.txt AC 141 ms 8832 KB
subtask2_08.txt AC 148 ms 8960 KB
subtask2_09.txt AC 152 ms 8960 KB
subtask2_10.txt AC 147 ms 8960 KB
subtask2_11.txt AC 143 ms 8320 KB
subtask2_12.txt AC 96 ms 8960 KB
subtask2_13.txt AC 109 ms 8576 KB