oj.uz

Submission #144312

# Submission time Handle Problem Language Result Execution time Memory
144312 2019-08-16T15:37:40 Z Lyestria Rectangles (IOI19_rect) C++14
72 / 100
 5000 ms 799320 KB 
#include "rect.h"
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const short mn=2510;
struct seg{
    short seg[mn][12];
    inline void up(short a,short b){
        seg[a][0]=b;
    }
    inline void init(){
        for(short i=1;i<12;i++){
            for(short j=0;j+(1<<i-1)<mn;j++){
                seg[j][i]=min(seg[j][i-1],seg[j+(1<<i-1)][i-1]);
            }
        }
    }
    inline short qu(short a,short b){
        short ret=0x3f3f;
        for(short i=11;i>=0;i--){
            if(a+(1<<i)<=b+1)ret=min(ret,seg[a][i]),a+=(1<<i);
        }
        return ret;
    }
};
seg lef[mn],rig[mn],up[mn],dow[mn];
short elef[mn][mn],erig[mn][mn],eup[mn][mn],edow[mn][mn];
unordered_set<ll>ss;
long long hsh(ll a,ll b,ll c,ll d){
    return (a<<48)|(b<<32)|(c<<16)|d;
}
long long count_rectangles(std::vector<std::vector<int> > a) {
	short n=a.size(),m=a[0].size();
	short i,j;
	stack<int>s;
	for(i=0;i<n;i++){
        for(j=0;j<m;j++){
            while(s.size()&&a[i][s.top()]<=a[i][j])rig[s.top()].up(i,j),s.pop();
            s.push(j);
        }
        while(s.size())rig[s.top()].up(i,j),s.pop();
        for(j=m-1;j>=0;j--){
            while(s.size()&&a[i][s.top()]<=a[i][j])lef[s.top()].up(i,-j),s.pop();
            s.push(j);
        }
        while(s.size())lef[s.top()].up(i,-j),s.pop();
        for(j=0;j<m;j++){
            while(s.size()&&a[i][s.top()]<a[i][j])erig[i][s.top()]=j,s.pop();
            s.push(j);
        }
        while(s.size())erig[i][s.top()]=j,s.pop();
        for(j=m-1;j>=0;j--){
            while(s.size()&&a[i][s.top()]<a[i][j])elef[i][s.top()]=j,s.pop();
            s.push(j);
        }
        while(s.size())elef[i][s.top()]=j,s.pop();
	}
	for(i=0;i<m;i++){
        for(j=0;j<n;j++){
            while(s.size()&&a[s.top()][i]<=a[j][i])dow[s.top()].up(i,j),s.pop();
            s.push(j);
        }
        while(s.size())dow[s.top()].up(i,j),s.pop();
        for(j=n-1;j>=0;j--){
            while(s.size()&&a[s.top()][i]<=a[j][i])up[s.top()].up(i,-j),s.pop();
            s.push(j);
        }
        while(s.size())up[s.top()].up(i,-j),s.pop();
        for(j=0;j<n;j++){
            while(s.size()&&a[s.top()][i]<a[j][i])edow[s.top()][i]=j,s.pop();
            s.push(j);
        }
        while(s.size())edow[s.top()][i]=j,s.pop();
        for(j=n-1;j>=0;j--){
            while(s.size()&&a[s.top()][i]<a[j][i])eup[s.top()][i]=j,s.pop();
            s.push(j);
        }
        while(s.size())eup[s.top()][i]=j,s.pop();
	}
	for(i=0;i<mn;i++)lef[i].init(),rig[i].init(),up[i].init(),dow[i].init();
  	int ans=0;
	for(i=1;i<n-1;i++){
        for(j=1;j<m-1;j++){
            short d,u,l,r;
            d=edow[i][j];
            u=eup[i][j];
            l=elef[i][j];
            r=erig[i][j];
          	if(ss.find(hsh(d,u,l,r))!=ss.end())continue;
            if(l==-1||u==-1||r==m||d==n)continue;
            if(rig[l].qu(u+1,d-1)<r)continue;
            if(-lef[r].qu(u+1,d-1)>l)continue;
            if(dow[u].qu(l+1,r-1)<d)continue;
            if(-up[d].qu(l+1,r-1)>u)continue;
            ss.insert(hsh(d,u,l,r));
        }
	}
	return ss.size();
}

Compilation message

rect.cpp: In member function 'void seg::init()':
rect.cpp:13:34: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
             for(short j=0;j+(1<<i-1)<mn;j++){
                                 ~^~
rect.cpp:14:54: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
                 seg[j][i]=min(seg[j][i-1],seg[j+(1<<i-1)][i-1]);
                                                     ~^~
rect.cpp: In function 'long long int count_rectangles(std::vector<std::vector<int> >)':
rect.cpp:81:8: warning: unused variable 'ans' [-Wunused-variable]
    int ans=0;
        ^~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1263 ms 592264 KB Output is correct
2 Correct 1271 ms 592864 KB Output is correct
3 Correct 1269 ms 592672 KB Output is correct
4 Correct 1259 ms 592656 KB Output is correct
5 Correct 1265 ms 592764 KB Output is correct
6 Correct 1264 ms 592848 KB Output is correct
7 Correct 1263 ms 592816 KB Output is correct
8 Correct 1265 ms 592444 KB Output is correct
9 Correct 1264 ms 592760 KB Output is correct
10 Correct 1267 ms 592724 KB Output is correct
11 Correct 1286 ms 592712 KB Output is correct
12 Correct 1282 ms 592888 KB Output is correct
13 Correct 1262 ms 592328 KB Output is correct
14 Correct 1265 ms 592376 KB Output is correct
15 Correct 1270 ms 592376 KB Output is correct
16 Correct 1266 ms 592248 KB Output is correct
17 Correct 1263 ms 592376 KB Output is correct
18 Correct 1287 ms 592208 KB Output is correct
19 Correct 1266 ms 592660 KB Output is correct
20 Correct 1287 ms 592776 KB Output is correct
21 Correct 1262 ms 592428 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1263 ms 592264 KB Output is correct
2 Correct 1271 ms 592864 KB Output is correct
3 Correct 1269 ms 592672 KB Output is correct
4 Correct 1259 ms 592656 KB Output is correct
5 Correct 1265 ms 592764 KB Output is correct
6 Correct 1264 ms 592848 KB Output is correct
7 Correct 1263 ms 592816 KB Output is correct
8 Correct 1265 ms 592444 KB Output is correct
9 Correct 1264 ms 592760 KB Output is correct
10 Correct 1267 ms 592724 KB Output is correct
11 Correct 1286 ms 592712 KB Output is correct
12 Correct 1282 ms 592888 KB Output is correct
13 Correct 1262 ms 592328 KB Output is correct
14 Correct 1265 ms 592376 KB Output is correct
15 Correct 1270 ms 592376 KB Output is correct
16 Correct 1266 ms 592248 KB Output is correct
17 Correct 1263 ms 593832 KB Output is correct
18 Correct 1269 ms 593836 KB Output is correct
19 Correct 1325 ms 593828 KB Output is correct
20 Correct 1265 ms 593648 KB Output is correct
21 Correct 1264 ms 593784 KB Output is correct
22 Correct 1263 ms 593912 KB Output is correct
23 Correct 1263 ms 593744 KB Output is correct
24 Correct 1263 ms 593612 KB Output is correct
25 Correct 1263 ms 592376 KB Output is correct
26 Correct 1287 ms 592208 KB Output is correct
27 Correct 1266 ms 592660 KB Output is correct
28 Correct 1287 ms 592776 KB Output is correct
29 Correct 1262 ms 592428 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1263 ms 592264 KB Output is correct
2 Correct 1271 ms 592864 KB Output is correct
3 Correct 1269 ms 592672 KB Output is correct
4 Correct 1259 ms 592656 KB Output is correct
5 Correct 1265 ms 592764 KB Output is correct
6 Correct 1264 ms 592848 KB Output is correct
7 Correct 1263 ms 592816 KB Output is correct
8 Correct 1265 ms 592444 KB Output is correct
9 Correct 1264 ms 592760 KB Output is correct
10 Correct 1267 ms 592724 KB Output is correct
11 Correct 1286 ms 592712 KB Output is correct
12 Correct 1282 ms 592888 KB Output is correct
13 Correct 1262 ms 592328 KB Output is correct
14 Correct 1265 ms 592376 KB Output is correct
15 Correct 1270 ms 592376 KB Output is correct
16 Correct 1266 ms 592248 KB Output is correct
17 Correct 1263 ms 593832 KB Output is correct
18 Correct 1269 ms 593836 KB Output is correct
19 Correct 1325 ms 593828 KB Output is correct
20 Correct 1265 ms 593648 KB Output is correct
21 Correct 1264 ms 593784 KB Output is correct
22 Correct 1263 ms 593912 KB Output is correct
23 Correct 1263 ms 593744 KB Output is correct
24 Correct 1263 ms 593612 KB Output is correct
25 Correct 1292 ms 597680 KB Output is correct
26 Correct 1303 ms 597720 KB Output is correct
27 Correct 1278 ms 597700 KB Output is correct
28 Correct 1272 ms 596280 KB Output is correct
29 Correct 1273 ms 596856 KB Output is correct
30 Correct 1418 ms 596716 KB Output is correct
31 Correct 1278 ms 596728 KB Output is correct
32 Correct 1281 ms 596728 KB Output is correct
33 Correct 1263 ms 592376 KB Output is correct
34 Correct 1287 ms 592208 KB Output is correct
35 Correct 1266 ms 592660 KB Output is correct
36 Correct 1287 ms 592776 KB Output is correct
37 Correct 1262 ms 592428 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1263 ms 592264 KB Output is correct
2 Correct 1271 ms 592864 KB Output is correct
3 Correct 1269 ms 592672 KB Output is correct
4 Correct 1259 ms 592656 KB Output is correct
5 Correct 1265 ms 592764 KB Output is correct
6 Correct 1264 ms 592848 KB Output is correct
7 Correct 1263 ms 592816 KB Output is correct
8 Correct 1265 ms 592444 KB Output is correct
9 Correct 1264 ms 592760 KB Output is correct
10 Correct 1267 ms 592724 KB Output is correct
11 Correct 1286 ms 592712 KB Output is correct
12 Correct 1282 ms 592888 KB Output is correct
13 Correct 1262 ms 592328 KB Output is correct
14 Correct 1265 ms 592376 KB Output is correct
15 Correct 1270 ms 592376 KB Output is correct
16 Correct 1266 ms 592248 KB Output is correct
17 Correct 1263 ms 593832 KB Output is correct
18 Correct 1269 ms 593836 KB Output is correct
19 Correct 1325 ms 593828 KB Output is correct
20 Correct 1265 ms 593648 KB Output is correct
21 Correct 1264 ms 593784 KB Output is correct
22 Correct 1263 ms 593912 KB Output is correct
23 Correct 1263 ms 593744 KB Output is correct
24 Correct 1263 ms 593612 KB Output is correct
25 Correct 1292 ms 597680 KB Output is correct
26 Correct 1303 ms 597720 KB Output is correct
27 Correct 1278 ms 597700 KB Output is correct
28 Correct 1272 ms 596280 KB Output is correct
29 Correct 1273 ms 596856 KB Output is correct
30 Correct 1418 ms 596716 KB Output is correct
31 Correct 1278 ms 596728 KB Output is correct
32 Correct 1281 ms 596728 KB Output is correct
33 Correct 1425 ms 609884 KB Output is correct
34 Correct 1424 ms 609804 KB Output is correct
35 Correct 1413 ms 610128 KB Output is correct
36 Correct 1418 ms 609952 KB Output is correct
37 Correct 1680 ms 634368 KB Output is correct
38 Correct 1664 ms 634348 KB Output is correct
39 Correct 1655 ms 634500 KB Output is correct
40 Correct 1668 ms 633100 KB Output is correct
41 Correct 1529 ms 610760 KB Output is correct
42 Correct 1483 ms 611936 KB Output is correct
43 Correct 1611 ms 616740 KB Output is correct
44 Correct 1597 ms 617032 KB Output is correct
45 Correct 1460 ms 610828 KB Output is correct
46 Correct 1409 ms 604588 KB Output is correct
47 Correct 1592 ms 616724 KB Output is correct
48 Correct 1602 ms 616760 KB Output is correct
49 Correct 1263 ms 592376 KB Output is correct
50 Correct 1287 ms 592208 KB Output is correct
51 Correct 1266 ms 592660 KB Output is correct
52 Correct 1287 ms 592776 KB Output is correct
53 Correct 1262 ms 592428 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1263 ms 592288 KB Output is correct
2 Correct 1296 ms 592284 KB Output is correct
3 Correct 1274 ms 592428 KB Output is correct
4 Correct 1268 ms 592264 KB Output is correct
5 Correct 1258 ms 592344 KB Output is correct
6 Correct 1262 ms 592248 KB Output is correct
7 Correct 1278 ms 592376 KB Output is correct
8 Correct 1260 ms 592396 KB Output is correct
9 Correct 1261 ms 592388 KB Output is correct
10 Correct 1262 ms 592252 KB Output is correct
11 Correct 1254 ms 592248 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1261 ms 592464 KB Output is correct
2 Correct 2669 ms 644940 KB Output is correct
3 Correct 4615 ms 702144 KB Output is correct
4 Correct 4500 ms 702516 KB Output is correct
5 Correct 4685 ms 702508 KB Output is correct
6 Correct 2356 ms 640972 KB Output is correct
7 Correct 3400 ms 687356 KB Output is correct
8 Correct 3568 ms 690444 KB Output is correct
9 Correct 1263 ms 592376 KB Output is correct
10 Correct 1287 ms 592208 KB Output is correct
11 Correct 1266 ms 592660 KB Output is correct
12 Correct 1287 ms 592776 KB Output is correct
13 Correct 1262 ms 592428 KB Output is correct

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1263 ms 592264 KB Output is correct
2 Correct 1271 ms 592864 KB Output is correct
3 Correct 1269 ms 592672 KB Output is correct
4 Correct 1259 ms 592656 KB Output is correct
5 Correct 1265 ms 592764 KB Output is correct
6 Correct 1264 ms 592848 KB Output is correct
7 Correct 1263 ms 592816 KB Output is correct
8 Correct 1265 ms 592444 KB Output is correct
9 Correct 1264 ms 592760 KB Output is correct
10 Correct 1267 ms 592724 KB Output is correct
11 Correct 1286 ms 592712 KB Output is correct
12 Correct 1282 ms 592888 KB Output is correct
13 Correct 1262 ms 592328 KB Output is correct
14 Correct 1265 ms 592376 KB Output is correct
15 Correct 1270 ms 592376 KB Output is correct
16 Correct 1266 ms 592248 KB Output is correct
17 Correct 1263 ms 593832 KB Output is correct
18 Correct 1269 ms 593836 KB Output is correct
19 Correct 1325 ms 593828 KB Output is correct
20 Correct 1265 ms 593648 KB Output is correct
21 Correct 1264 ms 593784 KB Output is correct
22 Correct 1263 ms 593912 KB Output is correct
23 Correct 1263 ms 593744 KB Output is correct
24 Correct 1263 ms 593612 KB Output is correct
25 Correct 1292 ms 597680 KB Output is correct
26 Correct 1303 ms 597720 KB Output is correct
27 Correct 1278 ms 597700 KB Output is correct
28 Correct 1272 ms 596280 KB Output is correct
29 Correct 1273 ms 596856 KB Output is correct
30 Correct 1418 ms 596716 KB Output is correct
31 Correct 1278 ms 596728 KB Output is correct
32 Correct 1281 ms 596728 KB Output is correct
33 Correct 1425 ms 609884 KB Output is correct
34 Correct 1424 ms 609804 KB Output is correct
35 Correct 1413 ms 610128 KB Output is correct
36 Correct 1418 ms 609952 KB Output is correct
37 Correct 1680 ms 634368 KB Output is correct
38 Correct 1664 ms 634348 KB Output is correct
39 Correct 1655 ms 634500 KB Output is correct
40 Correct 1668 ms 633100 KB Output is correct
41 Correct 1529 ms 610760 KB Output is correct
42 Correct 1483 ms 611936 KB Output is correct
43 Correct 1611 ms 616740 KB Output is correct
44 Correct 1597 ms 617032 KB Output is correct
45 Correct 1460 ms 610828 KB Output is correct
46 Correct 1409 ms 604588 KB Output is correct
47 Correct 1592 ms 616724 KB Output is correct
48 Correct 1602 ms 616760 KB Output is correct
49 Correct 1263 ms 592288 KB Output is correct
50 Correct 1296 ms 592284 KB Output is correct
51 Correct 1274 ms 592428 KB Output is correct
52 Correct 1268 ms 592264 KB Output is correct
53 Correct 1258 ms 592344 KB Output is correct
54 Correct 1262 ms 592248 KB Output is correct
55 Correct 1278 ms 592376 KB Output is correct
56 Correct 1260 ms 592396 KB Output is correct
57 Correct 1261 ms 592388 KB Output is correct
58 Correct 1262 ms 592252 KB Output is correct
59 Correct 1254 ms 592248 KB Output is correct
60 Correct 1261 ms 592464 KB Output is correct
61 Correct 2669 ms 644940 KB Output is correct
62 Correct 4615 ms 702144 KB Output is correct
63 Correct 4500 ms 702516 KB Output is correct
64 Correct 4685 ms 702508 KB Output is correct
65 Correct 2356 ms 640972 KB Output is correct
66 Correct 3400 ms 687356 KB Output is correct
67 Correct 3568 ms 690444 KB Output is correct
68 Correct 3792 ms 690680 KB Output is correct
69 Correct 3745 ms 690504 KB Output is correct
70 Correct 3782 ms 690500 KB Output is correct
71 Correct 3803 ms 690424 KB Output is correct
72 Execution timed out 5080 ms 799320 KB Time limit exceeded
73 Halted 0 ms 0 KB -