oj.uz

Submission #126130

# Submission time Handle Problem Language Result Execution time Memory
126130 2019-07-07T05:40:40 Z nxteru Wombats (IOI13_wombats) C++14
76 / 100
 20000 ms 178760 KB 
#include "wombats.h"
#include <bits/stdc++.h>
using namespace std;
#define INF 1000000001
#define B 10
struct node{
	int n,d[200][200];
	void ini(int x){
		n=x;
		for(int i=0;i<n;i++){
			for(int j=0;j<n;j++){
				if(i==j)d[i][j]=0;
				else d[i][j]=INF;
			}
		}
	}
	node plus(node &q){
		node res;
		res.ini(n);
		int a[405][205],s;
		for(int i=n-1;i>-n;i--){
			int *b=a[i+n+1],*c=a[i+n];
			for(int j=max(-i,0);i+j<n&&j<n;j++){
				s=INF;
				int x,y,z=i+j,*e=d[z];
				if(j-1>=0)x=b[j-1];
				else x=0;
				if(z+1<n)y=b[j];
				else y=n-1;
				for(int k=x;k<=y;k++){
					if(e[k]+q.d[k][j]<s){
						x=k;
						s=e[k]+q.d[k][j];
					}
				}
				c[j]=x;
				res.d[z][j]=min(s,INF);
			}
		}
		return res;
	}
};
struct SEG{
	int n;
	node seg[1<<10];
	void ini(int x){
		n=x;
		for(int i=0;i<1<<10;i++)seg[i].ini(n);
	}
	void up(int a,node &q){
		a+=(1<<9)-1;
		seg[a]=q;
		while(a>0){
			a=(a-1)/2;
			seg[a]=seg[a*2+1].plus(seg[a*2+2]);
		}
	}
};
int h[5005][205],w[5005][205],n,m,p[B][205];
SEG s;
node res[B];
void change(int x){
	x=x/B;
	for(int i=0;i<B&&x*B+i<n;i++)p[i][0]=0,res[i].ini(m);
	for(int i=0;i<B&&x*B+i<n;i++)for(int j=1;j<m;j++)p[i][j]=p[i][j-1]+h[x*B+i][j-1];
	for(int i=0;i<B&&x*B+i<n;i++){
		for(int j=0;j<m;j++){
			for(int k=0;k<m;k++){
				res[i].d[j][k]=p[i][max(j,k)]-p[i][min(j,k)]+w[x*B+i][k];
			}
		}
	}
	for(int i=1;i<B&&x*B+i<n;i++)res[0]=res[0].plus(res[i]);
	s.up(x,res[0]);
}
void init(int R, int C, int H[5000][200], int V[5000][200]) {
   n=R,m=C;
   s.ini(m);
   for(int i=0;i<n;i++)for(int j=0;j<m-1;j++)h[i][j]=H[i][j];
   for(int i=0;i<n-1;i++)for(int j=0;j<m;j++)w[i][j]=V[i][j];
   for(int i=0;i<n;i++)change(i);
}
void changeH(int a, int b, int x) {
    h[a][b]=x;
    change(a);
}
 
void changeV(int a, int b, int x) {
    w[a][b]=x;
    change(a);
}
 
int escape(int a, int b) {
    return s.seg[0].d[a][b];
}

Compilation message

grader.c: In function 'int main()':
grader.c:15:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
  int res;
      ^~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1322 ms 165352 KB Output is correct
2 Correct 1318 ms 165544 KB Output is correct
3 Correct 1381 ms 167040 KB Output is correct
4 Correct 1342 ms 165300 KB Output is correct
5 Correct 1321 ms 165496 KB Output is correct
6 Correct 7 ms 6392 KB Output is correct
7 Correct 7 ms 6520 KB Output is correct
8 Correct 7 ms 6392 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 6520 KB Output is correct
2 Correct 7 ms 6520 KB Output is correct
3 Correct 7 ms 6392 KB Output is correct
4 Correct 25 ms 22016 KB Output is correct
5 Correct 25 ms 22008 KB Output is correct
6 Correct 25 ms 22136 KB Output is correct
7 Correct 25 ms 22008 KB Output is correct
8 Correct 24 ms 21112 KB Output is correct
9 Correct 25 ms 22008 KB Output is correct
10 Correct 24 ms 21240 KB Output is correct
11 Correct 101 ms 22904 KB Output is correct
12 Correct 29 ms 22008 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 588 ms 87804 KB Output is correct
2 Correct 495 ms 87160 KB Output is correct
3 Correct 582 ms 87820 KB Output is correct
4 Correct 589 ms 87832 KB Output is correct
5 Correct 584 ms 87024 KB Output is correct
6 Correct 7 ms 6392 KB Output is correct
7 Correct 7 ms 6392 KB Output is correct
8 Correct 7 ms 6520 KB Output is correct
9 Correct 1385 ms 87856 KB Output is correct
10 Correct 9 ms 8824 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1350 ms 173268 KB Output is correct
2 Correct 1365 ms 173304 KB Output is correct
3 Correct 1355 ms 173280 KB Output is correct
4 Correct 1392 ms 174072 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 583 ms 87848 KB Output is correct
2 Correct 498 ms 87080 KB Output is correct
3 Correct 593 ms 88056 KB Output is correct
4 Correct 589 ms 87840 KB Output is correct
5 Correct 577 ms 86992 KB Output is correct
6 Correct 1350 ms 173316 KB Output is correct
7 Correct 1353 ms 173288 KB Output is correct
8 Correct 1360 ms 173336 KB Output is correct
9 Correct 1372 ms 174108 KB Output is correct
10 Correct 1309 ms 165368 KB Output is correct
11 Correct 1347 ms 165340 KB Output is correct
12 Correct 1401 ms 167032 KB Output is correct
13 Correct 1335 ms 165380 KB Output is correct
14 Correct 1343 ms 165508 KB Output is correct
15 Correct 7 ms 6520 KB Output is correct
16 Correct 7 ms 6392 KB Output is correct
17 Correct 7 ms 6520 KB Output is correct
18 Correct 26 ms 22008 KB Output is correct
19 Correct 25 ms 22008 KB Output is correct
20 Correct 25 ms 22008 KB Output is correct
21 Correct 25 ms 22008 KB Output is correct
22 Correct 24 ms 21240 KB Output is correct
23 Correct 25 ms 22008 KB Output is correct
24 Correct 24 ms 21240 KB Output is correct
25 Correct 101 ms 23048 KB Output is correct
26 Correct 25 ms 22008 KB Output is correct
27 Correct 1392 ms 87672 KB Output is correct
28 Correct 12328 ms 176400 KB Output is correct
29 Correct 11969 ms 160236 KB Output is correct
30 Correct 11988 ms 160216 KB Output is correct
31 Correct 12449 ms 177548 KB Output is correct
32 Correct 9 ms 8828 KB Output is correct

Subtask #6
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 593 ms 87800 KB Output is correct
2 Correct 503 ms 87032 KB Output is correct
3 Correct 594 ms 87800 KB Output is correct
4 Correct 585 ms 87768 KB Output is correct
5 Correct 587 ms 87160 KB Output is correct
6 Correct 1352 ms 173432 KB Output is correct
7 Correct 1346 ms 173320 KB Output is correct
8 Correct 1372 ms 173312 KB Output is correct
9 Correct 1372 ms 174128 KB Output is correct
10 Correct 1324 ms 165496 KB Output is correct
11 Correct 1331 ms 165436 KB Output is correct
12 Correct 1429 ms 167024 KB Output is correct
13 Correct 1335 ms 165392 KB Output is correct
14 Correct 1323 ms 165396 KB Output is correct
15 Execution timed out 20089 ms 178760 KB Time limit exceeded
16 Halted 0 ms 0 KB -