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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#110927 | #3066. Intrinsic Interval | LitDarkness | WA | 3ms | 7612kb | C++14 | 2.3kb | 2023-06-04 20:02:45 | 2023-06-04 20:02:46 |
Judging History
answer
#include <bits/stdc++.h>
#define For(i, a, b) for (int i = a; i <= b; ++i)
#define Rep(i, a, b) for (int i = a; i >= b; --i)
using namespace std;
const int maxN = 1e5 + 5;
struct seg_tree {
int tg, val;
}T[maxN << 2];
int n, m;
int st1[maxN], tp1, st2[maxN], tp2, a[maxN];
int al[maxN], ar[maxN];
struct Query {
int l, r, id;
bool operator< (const Query &a) const { return l < a.l; }
bool operator== (const Query &a) const { return id == a.id; }
}qu[maxN];
inline void addt(int x, int v) { T[x].tg += v; T[x].val += v; }
inline void pd(int k) {
if (T[k].tg) {
addt(k << 1, T[k].tg); addt(k << 1|1, T[k].tg);
T[k].tg = 0;
}
}
void update(int x, int y, int v, int k = 1, int l = 1, int r = n) {
if (x <= l && r <= y) return addt(k, v);
pd(k);
int mid = l + r >> 1;
if (x <= mid) update(x, y, v, k << 1, l, mid);
if (y > mid) update(x, y, v, k << 1|1, mid + 1, r);
T[k].val = min(T[k << 1].val, T[k << 1|1].val);
}
int query(int x, int y, int k = 1, int l = 1, int r = n) {
if (x <= l && r <= y) return T[k].val;
pd(k);
int mid = l + r >> 1, s = n + 1;
if (x <= mid) s = min(s, query(x, y, k << 1, l, mid));
if (y > mid) s = min(s, query(x, y, k << 1|1, mid + 1, r));
return s;
}
inline int findp(int r) {
int l = 1, ans = -1, mid;
if (query(1, r)) return -1;
while (l <= r) {
mid = l + r >> 1;
if (query(mid, r) == 0) ans = mid, l = mid + 1;
else r = mid - 1;
}
return ans;
}
set<Query> S;
int main() {
scanf("%d", &n);
For (i, 1, n) scanf("%d", a + i);
scanf("%d", &m);
For (i, 1, m) {
scanf("%d%d", &qu[i].l, &qu[i].r); qu[i].id = i;
}
sort(qu + 1, qu + m + 1, [](Query a, Query b) { return a.r < b.r; });
int tp = 1;
For (i, 1, n) {
while (tp1 && a[st1[tp1]] > a[i]) {
update(st1[tp1 - 1] + 1, st1[tp1], -a[i] + a[st1[tp1]]);
--tp1;
}
st1[++tp1] = i;
while (tp2 && a[st2[tp2]] < a[i]) {
update(st2[tp2 - 1] + 1, st2[tp2], a[i] - a[st2[tp2]]);
--tp2;
}
st2[++tp2] = i;
if (i > 1) update(1, i - 1, -1);
while (tp <= m && qu[tp].r == i) S.emplace(qu[tp++]);
while (!S.empty()) {
auto v = *S.rbegin();
int u = findp(v.l);
if (u == -1) break;
al[v.id] = u; ar[v.id] = i;
S.erase(prev(S.end()));
}
}
For (i, 1, m) printf("%d %d\n", al[i], ar[i]);
return 0;
}
詳細信息
Test #1:
score: 100
Accepted
time: 2ms
memory: 5880kb
input:
7 3 1 7 5 6 4 2 3 3 6 7 7 1 3
output:
3 6 7 7 1 7
result:
ok 3 lines
Test #2:
score: 0
Accepted
time: 3ms
memory: 7612kb
input:
10 2 1 4 3 5 6 7 10 8 9 5 2 3 3 7 4 7 4 8 7 8
output:
1 4 3 7 3 7 3 10 7 10
result:
ok 5 lines
Test #3:
score: 0
Accepted
time: 1ms
memory: 5884kb
input:
1000 998 996 997 1000 999 991 992 994 995 993 986 987 988 989 990 984 983 981 985 982 979 977 976 978 980 975 973 974 972 971 964 962 963 965 961 970 966 967 969 968 848 849 850 846 847 842 841 843 845 844 853 851 855 854 852 858 860 857 856 859 869 867 866 868 870 865 864 862 861 863 874 871 875 87...
output:
1 3 2 3 1 5 4 5 1 10 6 7 7 10 8 9 8 10 6 15 11 12 12 13 13 14 14 15 11 20 16 17 16 20 16 20 16 20 16 25 21 24 22 23 22 24 21 25 21 26 26 28 27 28 27 29 29 30 30 40 31 33 32 33 31 34 31 35 31 40 36 40 37 38 38 40 39 40 31 200 41 42 42 43 41 45 44 45 44 50 46 47 46 48 48 50 49 50 41 55 51 55 51 55 53 ...
result:
ok 999 lines
Test #4:
score: -100
Wrong Answer
time: 3ms
memory: 5832kb
input:
1000 993 992 994 995 991 998 996 1000 999 997 988 987 986 989 990 985 984 981 982 983 963 962 964 965 961 967 968 970 969 966 972 975 973 974 971 977 980 976 979 978 940 937 936 938 939 933 932 931 934 935 923 924 925 922 921 929 926 927 928 930 953 954 955 951 952 956 958 959 960 957 948 950 947 94...
output:
21 1000 201 1000 21 1000 81 1000 201 1000 17 1000 201 1000 121 1000 41 1000 11 1000 201 1000 0 0 41 1000 81 1000 81 1000 201 1000 0 0 481 900 0 0 361 680 1 1000 201 1000 121 1000 201 1000 201 1000 481 680 121 1000 121 1000 41 1000 441 840 121 1000 361 1000 201 1000 361 680 0 0 361 1000 361 680 361 5...
result:
wrong answer 12th lines differ - expected: '201 1000', found: '0 0'