mirror of
https://git.sb/baoshuo/OI-codes.git
synced 2024-12-24 03:11:58 +00:00
parent
56c8b7aff7
commit
525c3c6a1a
94
S2OJ/1446/1446.cpp
Normal file
94
S2OJ/1446/1446.cpp
Normal file
@ -0,0 +1,94 @@
|
||||
#include <iostream>
|
||||
#include <cmath>
|
||||
#include <cstring>
|
||||
|
||||
using std::cin;
|
||||
using std::cout;
|
||||
const char endl = '\n';
|
||||
|
||||
const int N = 1e5 + 5;
|
||||
|
||||
int n, c, t, a[N], st[N], ed[N], pos[N], rep[N];
|
||||
|
||||
inline void pushdown(int x) {
|
||||
if (rep[x] != -1) {
|
||||
for (int i = st[x]; i <= ed[x]; i++) a[i] = rep[x];
|
||||
rep[x] = -1;
|
||||
}
|
||||
}
|
||||
|
||||
int solve(int l, int r, int c) {
|
||||
int p = pos[l],
|
||||
q = pos[r];
|
||||
int res = 0;
|
||||
|
||||
if (p == q) {
|
||||
pushdown(p);
|
||||
for (int i = l; i <= r; i++) {
|
||||
if (a[i] == c) res++;
|
||||
a[i] = c;
|
||||
}
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
pushdown(p);
|
||||
for (int i = l; i <= ed[p]; i++) {
|
||||
if (a[i] == c) res++;
|
||||
a[i] = c;
|
||||
}
|
||||
|
||||
pushdown(q);
|
||||
for (int i = st[q]; i <= r; i++) {
|
||||
if (a[i] == c) res++;
|
||||
a[i] = c;
|
||||
}
|
||||
|
||||
for (int i = p + 1; i <= q - 1; i++) {
|
||||
if (rep[i] != -1) {
|
||||
if (rep[i] == c) res += ed[i] - st[i] + 1;
|
||||
} else {
|
||||
for (int j = st[i]; j <= ed[i]; j++) {
|
||||
if (a[j] == c) res++;
|
||||
a[j] = c;
|
||||
}
|
||||
}
|
||||
rep[i] = c;
|
||||
}
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
int main() {
|
||||
std::ios::sync_with_stdio(false);
|
||||
|
||||
memset(rep, 0xff, sizeof(rep));
|
||||
|
||||
cin >> n;
|
||||
|
||||
for (int i = 1; i <= n; i++) {
|
||||
cin >> a[i];
|
||||
}
|
||||
|
||||
t = std::sqrt(n);
|
||||
|
||||
for (c = 1;; c++) {
|
||||
st[c] = (c - 1) * t + 1;
|
||||
ed[c] = std::min(n, c * t);
|
||||
|
||||
if (c * t >= n) break;
|
||||
}
|
||||
|
||||
for (int i = 1; i <= c; i++) {
|
||||
for (int j = st[i]; j <= ed[i]; j++) {
|
||||
pos[j] = i;
|
||||
}
|
||||
}
|
||||
|
||||
for (int i = 1, l, r, c; i <= n; i++) {
|
||||
cin >> l >> r >> c;
|
||||
cout << solve(l, r, c) << endl;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
BIN
S2OJ/1446/data/a1.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1446/data/a1.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1446/data/a1.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1446/data/a1.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1446/data/a10.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1446/data/a10.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1446/data/a10.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1446/data/a10.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1446/data/a2.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1446/data/a2.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1446/data/a2.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1446/data/a2.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1446/data/a3.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1446/data/a3.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1446/data/a3.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1446/data/a3.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1446/data/a4.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1446/data/a4.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1446/data/a4.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1446/data/a4.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1446/data/a5.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1446/data/a5.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1446/data/a5.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1446/data/a5.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1446/data/a6.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1446/data/a6.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1446/data/a6.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1446/data/a6.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1446/data/a7.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1446/data/a7.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1446/data/a7.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1446/data/a7.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1446/data/a8.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1446/data/a8.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1446/data/a8.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1446/data/a8.out
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1446/data/a9.in
(Stored with Git LFS)
Normal file
BIN
S2OJ/1446/data/a9.in
(Stored with Git LFS)
Normal file
Binary file not shown.
BIN
S2OJ/1446/data/a9.out
(Stored with Git LFS)
Normal file
BIN
S2OJ/1446/data/a9.out
(Stored with Git LFS)
Normal file
Binary file not shown.
Loading…
Reference in New Issue
Block a user