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Submission #858682

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```#include <iostream>
#include <cstdio>
#include <cstring>
#include <algorithm>
#include <string>
#include <cmath>
#include <cstdlib>
#include <vector>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <bitset>

using namespace std;

#define ll long long
#define SZ(x) ((int)(x).size())
#define ALL(v) (v).begin(), (v).end()
#define foreach(i, v) for (__typeof((v).begin()) i = (v).begin(); i != (v).end(); ++ i)
#define reveach(i, v) for (__typeof((v).rbegin()) i = (v).rbegin(); i != (v).rend(); ++ i)
#define REP(i,a,n) for ( int i=a; i<int(n); i++ )
#define FOR(i,a,n) for ( int i=n-1; i>= int(a);i-- )
#define lson rt<<1, L, m
#define rson rt<<1|1, m, R
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define mp(x, y) make_pair(x, y)
#define pb(x) push_back(x)
#define fi first
#define se second
#define CLR(a, b) memset(a, b, sizeof(a))
#define Max(a, b) a = max(a, b)
#define Min(a, b) a = min(a, b)
const int N = 1e5 + 7;
const int LOGN = 20;
const int INF = 2e9 + 7;
int n;
int a[N];
int L, Q;
int nxt[LOGN][N];
void ini(){
REP(i, 0, n){
nxt[0][i] = upper_bound(a + i + 1, a + n, a[i] + L) - a - 1;
}
REP(i, 1, LOGN){
REP(j, 0, n){
nxt[i][j] = nxt[i - 1][nxt[i - 1][j]];
}
}
}
int query(int l, int r){
int res = 1;
FOR(i, 0, LOGN){
if(nxt[i][l] < r){
l = nxt[i][l];
res += 1 << i;
}
}
return res;
}
int main(){
#ifdef ac
freopen("in.txt","r",stdin);
#endif
//freopen("out.txt","w",stdout);
scanf("%d", &n);
REP(i, 0, n) scanf("%d", &a[i]);
scanf("%d%d", &L, &Q);
ini();
while(Q --){
int l, r;
scanf("%d%d", &l, &r);
if(l > r) swap(l, r);
l --, r --;
printf("%d\n", query(l, r));
}
return 0;
}
```

#### Submission Info

Submission Time 2016-08-29 15:33:44+0900 E - Tak and Hotels Cosss C++14 (GCC 5.4.1) 700 1948 Byte AC 150 ms 9088 KB

#### Compile Error

```./Main.cpp: In function ‘int main()’:
./Main.cpp:68:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &n);
^
./Main.cpp:69:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
REP(i, 0, n) scanf("%d", &a[i]);
^
./Main.cpp:70:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d", &L, &Q);
^
./Main.cpp:74:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d", &l, &r);
^
```

#### Judge Result

Score / Max Score 0 / 0 200 / 200 500 / 500
Status
 AC × 1
 AC × 14
 AC × 27
Set Name Test Cases
Sample example_01.txt
Case Name Status Exec Time Memory
example_01.txt AC 4 ms 384 KB
subtask1_01.txt AC 4 ms 384 KB
subtask1_02.txt AC 4 ms 384 KB
subtask1_03.txt AC 5 ms 384 KB
subtask1_04.txt AC 5 ms 384 KB
subtask1_05.txt AC 5 ms 384 KB
subtask1_06.txt AC 5 ms 384 KB
subtask1_07.txt AC 5 ms 384 KB
subtask1_08.txt AC 5 ms 384 KB
subtask1_09.txt AC 5 ms 384 KB
subtask1_10.txt AC 5 ms 384 KB
subtask1_11.txt AC 5 ms 384 KB
subtask1_12.txt AC 5 ms 384 KB
subtask1_13.txt AC 8 ms 384 KB
subtask2_01.txt AC 133 ms 8832 KB
subtask2_02.txt AC 145 ms 8960 KB
subtask2_03.txt AC 131 ms 8832 KB
subtask2_04.txt AC 71 ms 5760 KB
subtask2_05.txt AC 89 ms 6016 KB
subtask2_06.txt AC 111 ms 8576 KB
subtask2_07.txt AC 139 ms 8960 KB
subtask2_08.txt AC 144 ms 8960 KB
subtask2_09.txt AC 143 ms 8960 KB
subtask2_10.txt AC 150 ms 8960 KB
subtask2_11.txt AC 140 ms 8448 KB
subtask2_12.txt AC 89 ms 9088 KB
subtask2_13.txt AC 111 ms 8576 KB