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ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#423075 | #8179. 2D Parentheses | complexor | WA | 203ms | 27396kb | C++23 | 2.8kb | 2024-05-27 21:01:37 | 2024-05-27 21:01:38 |
Judging History
answer
#include <bits/stdc++.h>
typedef long long LL;
#define clr(a, n) memset(a, 0, sizeof(int) * (n))
#define cpy(a, b, n) memcpy(a, b, sizeof(int) * (n))
int read()
{
int s = 0, f = 1;
char c = getchar();
while (!(c >= '0' && c <= '9'))
f ^= (c == '-'), c = getchar();
while (c >= '0' && c <= '9')
s = s * 10 + (c ^ 48), c = getchar();
return f ? s : -s;
}
const int MAXN = 400005;
struct Point
{
int x, y, id, o;
friend bool operator<(Point a, Point b){ return a.x != b.x ? a.x < b.x : a.y < b.y; }
} p[MAXN << 1];
struct Segment
{
int x, yl, yr, v;
Segment(){}
Segment(int _x, int _yl, int _yr, int _v)
: x(_x), yl(_yl), yr(_yr), v(_v) {}
} sg[MAXN << 1];
std::set<Point> rec;
int n, ans[MAXN], m = 0, yy[MAXN << 1], V;
namespace BIT
{
int c[MAXN << 1] = {0};
void modify(int x, int v)
{
for (; x <= V; x += x & -x)
c[x] += v;
}
int query(int x)
{
int res = 0;
for (; x; x -= x & -x)
res += c[x];
return res;
}
int query(int l, int r) { return query(r) - query(l - 1); }
}
int getId(int y){ return std::lower_bound(yy + 1, yy + V + 1, y) - yy; }
int main()
{
n = read();
for (int i = 1; i <= n; i++)
p[i].x = read(), p[i].y = read(), p[i].id = i, p[i].o = 0;
for (int i = 1 + n; i <= n + n; i++)
p[i].x = read(), p[i].y = read(), p[i].id = i - n, p[i].o = 1;
if (n <= 2) return printf("NO"), 0;
std::sort(p + 1, p + n * 2 + 1, [](Point a, Point b){ return a.y != b.y ? a.y < b.y : a.x < b.x; });
for (int i = 1; i <= n * 2; i++)
{
// printf("%d %d %d %d\n", p[i].x, p[i].y, p[i].id, p[i].o);
// if (i == 4) for (Point t : rec) printf("%d %d %d %d\n", t.x, t.y, t.id, t.o);
yy[i] = p[i].y;
if (p[i].o == 0) rec.insert(p[i]);
else
{
auto it = rec.lower_bound(Point(p[i].x, -1e9 - 1, 0, 0));
if (it == rec.begin()) return printf("No\n"), 0;
// printf("!%d\n", it->id);
--it, ans[it->id] = p[i].id;
// printf("%d: %d\n", i, it->id);
sg[++m] = Segment(it->x, it->y, p[i].y, 1);
sg[++m] = Segment(p[i].x, it->y, p[i].y, -1);
rec.erase(it);
}
}
V = std::unique(yy + 1, yy + n * 2 + 1) - yy - 1;
std::sort(sg + 1, sg + m + 1, [](Segment a, Segment b){
if (a.x == b.x && a.v == b.v)
return a.v == -1 ? a.yr - a.yl < b.yr - b.yl : a.yr - a.yl > b.yr - b.yl;
return a.x == b.x ? a.v < b.v : a.x < b.x;
});
for (int i = 1; i <= m; i++)
{
int l = getId(sg[i].yl), r = getId(sg[i].yr);
// printf("%d: %d %d %d %d %d\n", i, sg[i].x, sg[i].yl, sg[i].yr, sg[i].v, BIT::query(l + 1, r - 1));
if (sg[i].v == 1 && l < r && BIT::query(l + 1, r - 1) > 0) ;
// return printf("No"), 0;
if (sg[i].v == -1 && l < r && BIT::query(l + 1, r - 1) > 0) ;
// return printf("No\n"), 0;
BIT::modify(l, sg[i].v), BIT::modify(r, sg[i].v);
}
printf("Yes\n");
for (int i = 1; i <= n; i++) printf("%d\n", ans[i]);
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 2ms
memory: 11984kb
input:
3 0 0 2 -2 1 1 2 2 3 1 2 3
output:
Yes 3 2 1
result:
ok answer is YES, 3 tokens
Test #2:
score: 0
Accepted
time: 1ms
memory: 7824kb
input:
2 1 0 0 1 2 3 3 2
output:
NO
result:
ok answer is NO
Test #3:
score: 0
Accepted
time: 0ms
memory: 7824kb
input:
1 1 1 0 0
output:
NO
result:
ok answer is NO
Test #4:
score: -100
Wrong Answer
time: 203ms
memory: 27396kb
input:
199996 94702923 895749121 -830347683 823853414 -638337012 -528381915 774504965 -903560893 465975432 931026841 47062323 901390864 539345338 830099354 278774201 896803047 -445303873 568413124 80473317 828648317 804283391 -307873779 543648687 893783688 814084625 -664894626 169476937 -999435847 -8232728...
output:
Yes 179847 88398 85506 159482 29196 103293 188581 198023 157367 48765 173490 11231 137133 196363 186804 109982 78032 34701 44848 136548 134111 59067 59175 165032 96898 44935 5843 122285 62483 155862 76890 97333 145165 56089 167272 28165 1888 1988 107334 185925 183211 91317 115785 179081 10550 101854...
result:
wrong answer 1st words differ - expected: '21701', found: '179847'