#include <bits/stdc++.h>
#define ll long long
#define mp make_pair
#define pii pair<int,int>
using namespace std;
const int maxn = 100100;
const ll mod = 30013;
map<int, int> up, down;
int tree[2*4*maxn][2];
int upmax, downmax, n;
int dp[maxn];
int dpways[maxn];
struct trapez {
public:
int a, b, c, d;
} arr[maxn];
void update(int ux, int value, int valueb, int li=0, int ri=downmax, int index=1) {
if(li==ri) {
tree[index][0] += value;
tree[index][1] += valueb;
if(tree[index][1] > mod)
tree[index][1] -= mod;
}
else {
int mid = (li+ri)/2;
if(ux <= mid) update(ux, value, valueb, li, mid, 2*index);
else if(ux > mid) update(ux, value, valueb, mid+1, ri, 2*index+1);
if(tree[2*index][0] == tree[2*index+1][0]) {
tree[index][0] = tree[2*index][0];
tree[index][1] = (tree[2*index][1] + tree[2*index+1][1]);
if(tree[index][1] > mod) tree[index][1] -= mod;
}
else if(tree[2*index][0] > tree[2*index+1][0]) {
tree[index][0] = tree[2*index][0];
tree[index][1] = tree[2*index][1];
}
else {
tree[index][0] = tree[2*index+1][0];
tree[index][1] = tree[2*index+1][1];
}
}
}
pii query(int ql, int qr, int li=0, int ri=downmax, int index=1) {
if(li > qr || ri < ql) return make_pair(0, 0);
else if(li >= ql && ri <= qr) return make_pair(tree[index][0], tree[index][1]);
else {
int mid = (li+ri)/2;
pii a = query(ql,qr,li,mid,2*index);
pii b = query(ql,qr,mid+1,ri,2*index+1);
if(a.first == b.first) return make_pair(a.first, (a.second+b.second)%mod);
else if(a.first > b.first) return a;
else return b;
}
}
vector<pair<int, bool> > events[2*maxn];
int main() {
scanf("%d", &n);
for(int i=0;i<n;i++) {
scanf("%d %d %d %d", &arr[i].a, &arr[i].b, &arr[i].c, &arr[i].d);
up[arr[i].a] = 1;
up[arr[i].b] = 1;
down[arr[i].c] = 1;
down[arr[i].d] = 1;
}
upmax = downmax = 1;
for(auto i:up) {
up[i.first] = upmax++;
}
for(auto i:down) {
down[i.first] = downmax++;
}
for(int i=0;i<n;i++) {
arr[i].a = up[arr[i].a];
arr[i].b = up[arr[i].b];
arr[i].c = down[arr[i].c];
arr[i].d = down[arr[i].d];
events[arr[i].a].push_back(make_pair(i, true));
events[arr[i].b].push_back(make_pair(i, false));
}
update(0,0,1);
int result = 0;
int ways = 0;
for(int i=1;i<=upmax;i++) {
for(int j=0;j<events[i].size();j++) {
if(events[i][j].second) {
pii temp = query(0, arr[events[i][j].first].c);
dp[events[i][j].first] = temp.first + 1;
dpways[events[i][j].first] = temp.second;
if(dp[events[i][j].first] > result) {
result = dp[events[i][j].first];
ways = dpways[events[i][j].first];
}
else if(dp[events[i][j].first] == result) {
ways += dpways[events[i][j].first];
if(ways > mod) ways-=mod;
}
}
else update(arr[events[i][j].first].d, dp[events[i][j].first], dpways[events[i][j].first]);
}
}
cout<<result<<" "<<ways<<"\n";
return 0;
}
Compilation message
trapezoid.cpp: In function 'int main()':
trapezoid.cpp:95:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int j=0;j<events[i].size();j++) {
~^~~~~~~~~~~~~~~~~
trapezoid.cpp:64:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &n);
~~~~~^~~~~~~~~~
trapezoid.cpp:66:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d %d %d %d", &arr[i].a, &arr[i].b, &arr[i].c, &arr[i].d);
~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
8 ms |
4988 KB |
Output is correct |
| 2 |
Correct |
8 ms |
5224 KB |
Output is correct |
| 3 |
Correct |
10 ms |
5280 KB |
Output is correct |
| 4 |
Correct |
10 ms |
5472 KB |
Output is correct |
| 5 |
Correct |
13 ms |
5736 KB |
Output is correct |
| 6 |
Correct |
17 ms |
6036 KB |
Output is correct |
| 7 |
Correct |
21 ms |
6376 KB |
Output is correct |
| 8 |
Correct |
30 ms |
6888 KB |
Output is correct |
| 9 |
Correct |
56 ms |
8496 KB |
Output is correct |
| 10 |
Correct |
116 ms |
11884 KB |
Output is correct |
| 11 |
Correct |
131 ms |
13000 KB |
Output is correct |
| 12 |
Correct |
332 ms |
21192 KB |
Output is correct |
| 13 |
Correct |
463 ms |
23700 KB |
Output is correct |
| 14 |
Correct |
463 ms |
28600 KB |
Output is correct |
| 15 |
Execution timed out |
665 ms |
30184 KB |
Time limit exceeded |
| 16 |
Execution timed out |
656 ms |
31344 KB |
Time limit exceeded |
| 17 |
Execution timed out |
620 ms |
32720 KB |
Time limit exceeded |
| 18 |
Execution timed out |
530 ms |
34160 KB |
Time limit exceeded |
| 19 |
Execution timed out |
560 ms |
34940 KB |
Time limit exceeded |
| 20 |
Execution timed out |
673 ms |
36580 KB |
Time limit exceeded |
