oj.uz

Submission #403827

# Submission time Handle Problem Language Result Execution time Memory
403827 2021-05-13T13:49:11 Z donghwa722 Abduction 2 (JOI17_abduction2) C++14
100 / 100
 3531 ms 265124 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef pair<pair<int,int>,int> piii;
map<piii,ll> dp;
int A[50010],B[50010];
int a1[50010][17],a2[50010][17],b1[50010][17],b2[50010][17];
int h,w,q;

ll dfs(int a,int b,int d){
    //printf("--%d %d %d\n",a,b,d);
    if(dp.find({{a,b},d})!=dp.end()) return dp[{{a,b},d}];
    int c=(d>=2?A[a]:B[b]); ll re=0;
   // printf("%d\n",c);
    if(d==0){
        int x=a+1;
        for(int i=16;i>=0;i--){
            if(x>=h) break;
            if(a1[x][i]<c) x+=(1<<i);
        }
        if(x>=h) re=h-1-a;
        else re=max(dfs(x,b,2),dfs(x,b,3))+x-a;
    }
    else if(d==1){
        int x=h-a;
        for(int i=16;i>=0;i--){
            if(x>=h) break;
            if(a2[x][i]<c) x+=(1<<i);
        }
        if(x>=h) re=a;
        else re=max(dfs(h-1-x,b,2),dfs(h-1-x,b,3))+a-(h-1-x);
    }
    else if(d==2){
        int x=b+1;
        for(int i=16;i>=0;i--){
            if(x>=w) break;
            if(b1[x][i]<c) x+=(1<<i);
        }
        if(x>=w) re=w-1-b;
        else re=max(dfs(a,x,0),dfs(a,x,1))+x-b;
    }
    else{
        int x=w-b;
        for(int i=16;i>=0;i--){
            if(x>=w) break;
            if(b2[x][i]<c) x+=(1<<i);
        }
        if(x>=w) re=b;
        else re=max(dfs(a,w-1-x,0),dfs(a,w-1-x,1))+b-(w-1-x);
    }
   // printf("%d %d %d %lld\n",a,b,d,re);
    return dp[{{a,b},d}]=re;
}

int main()
{
    scanf("%d %d %d",&h,&w,&q);
    for(int i=0;i<h;i++){scanf("%d",&A[i]); a1[i][0]=a2[h-1-i][0]=A[i];}
    for(int i=0;i<w;i++){scanf("%d",&B[i]); b1[i][0]=b2[w-1-i][0]=B[i];}
    for(int i=1;i<17;i++){
        for(int j=0;j<h;j++){
            a1[j][i]=max(a1[j][i-1],a1[min(j+(1<<(i-1)),h)][i-1]);
            a2[j][i]=max(a2[j][i-1],a2[min(j+(1<<(i-1)),h)][i-1]);
        }
        for(int j=0;j<w;j++){
            b1[j][i]=max(b1[j][i-1],b1[min(j+(1<<(i-1)),w)][i-1]);
            b2[j][i]=max(b2[j][i-1],b2[min(j+(1<<(i-1)),w)][i-1]);
        }
    }
    for(int i=0;i<q;i++){
        int a,b; scanf("%d %d",&a,&b);
        ll re=0;
        for(int j=0;j<4;j++) re=max(re,dfs(a-1,b-1,j));
        printf("%lld\n",re);
    }
    return 0;
}

Compilation message

abduction2.cpp: In function 'int main()':
abduction2.cpp:57:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   57 |     scanf("%d %d %d",&h,&w,&q);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~
abduction2.cpp:58:31: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   58 |     for(int i=0;i<h;i++){scanf("%d",&A[i]); a1[i][0]=a2[h-1-i][0]=A[i];}
      |                          ~~~~~^~~~~~~~~~~~
abduction2.cpp:59:31: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   59 |     for(int i=0;i<w;i++){scanf("%d",&B[i]); b1[i][0]=b2[w-1-i][0]=B[i];}
      |                          ~~~~~^~~~~~~~~~~~
abduction2.cpp:71:23: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   71 |         int a,b; scanf("%d %d",&a,&b);
      |                  ~~~~~^~~~~~~~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 292 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 292 KB Output is correct
12 Correct 2 ms 844 KB Output is correct
13 Correct 3 ms 844 KB Output is correct
14 Correct 2 ms 844 KB Output is correct
15 Correct 3 ms 824 KB Output is correct
16 Correct 2 ms 824 KB Output is correct
17 Correct 2 ms 844 KB Output is correct
18 Correct 2 ms 972 KB Output is correct
19 Correct 5 ms 1228 KB Output is correct
20 Correct 6 ms 1484 KB Output is correct
21 Correct 6 ms 1356 KB Output is correct
22 Correct 9 ms 1740 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 292 KB Output is correct
12 Correct 2 ms 844 KB Output is correct
13 Correct 3 ms 844 KB Output is correct
14 Correct 2 ms 844 KB Output is correct
15 Correct 3 ms 824 KB Output is correct
16 Correct 2 ms 824 KB Output is correct
17 Correct 2 ms 844 KB Output is correct
18 Correct 2 ms 972 KB Output is correct
19 Correct 5 ms 1228 KB Output is correct
20 Correct 6 ms 1484 KB Output is correct
21 Correct 6 ms 1356 KB Output is correct
22 Correct 9 ms 1740 KB Output is correct
23 Correct 40 ms 14952 KB Output is correct
24 Correct 42 ms 14864 KB Output is correct
25 Correct 40 ms 14924 KB Output is correct
26 Correct 42 ms 14956 KB Output is correct
27 Correct 41 ms 14904 KB Output is correct
28 Correct 67 ms 22616 KB Output is correct
29 Correct 42 ms 15960 KB Output is correct
30 Correct 151 ms 26228 KB Output is correct
31 Correct 179 ms 29500 KB Output is correct
32 Correct 45 ms 15336 KB Output is correct
33 Correct 80 ms 18412 KB Output is correct

Subtask #4
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 1228 KB Output is correct
2 Correct 5 ms 1228 KB Output is correct
3 Correct 7 ms 1228 KB Output is correct
4 Correct 5 ms 1228 KB Output is correct
5 Correct 5 ms 1208 KB Output is correct
6 Correct 4 ms 1228 KB Output is correct
7 Correct 4 ms 1228 KB Output is correct
8 Correct 10 ms 1716 KB Output is correct
9 Correct 9 ms 1788 KB Output is correct
10 Correct 10 ms 1624 KB Output is correct
11 Correct 12 ms 1884 KB Output is correct

Subtask #5
56.0 / 56.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 292 KB Output is correct
12 Correct 2 ms 844 KB Output is correct
13 Correct 3 ms 844 KB Output is correct
14 Correct 2 ms 844 KB Output is correct
15 Correct 3 ms 824 KB Output is correct
16 Correct 2 ms 824 KB Output is correct
17 Correct 2 ms 844 KB Output is correct
18 Correct 2 ms 972 KB Output is correct
19 Correct 5 ms 1228 KB Output is correct
20 Correct 6 ms 1484 KB Output is correct
21 Correct 6 ms 1356 KB Output is correct
22 Correct 9 ms 1740 KB Output is correct
23 Correct 40 ms 14952 KB Output is correct
24 Correct 42 ms 14864 KB Output is correct
25 Correct 40 ms 14924 KB Output is correct
26 Correct 42 ms 14956 KB Output is correct
27 Correct 41 ms 14904 KB Output is correct
28 Correct 67 ms 22616 KB Output is correct
29 Correct 42 ms 15960 KB Output is correct
30 Correct 151 ms 26228 KB Output is correct
31 Correct 179 ms 29500 KB Output is correct
32 Correct 45 ms 15336 KB Output is correct
33 Correct 80 ms 18412 KB Output is correct
34 Correct 6 ms 1228 KB Output is correct
35 Correct 5 ms 1228 KB Output is correct
36 Correct 7 ms 1228 KB Output is correct
37 Correct 5 ms 1228 KB Output is correct
38 Correct 5 ms 1208 KB Output is correct
39 Correct 4 ms 1228 KB Output is correct
40 Correct 4 ms 1228 KB Output is correct
41 Correct 10 ms 1716 KB Output is correct
42 Correct 9 ms 1788 KB Output is correct
43 Correct 10 ms 1624 KB Output is correct
44 Correct 12 ms 1884 KB Output is correct
45 Correct 51 ms 15452 KB Output is correct
46 Correct 48 ms 15436 KB Output is correct
47 Correct 49 ms 15428 KB Output is correct
48 Correct 47 ms 15436 KB Output is correct
49 Correct 47 ms 15516 KB Output is correct
50 Correct 80 ms 22596 KB Output is correct
51 Correct 81 ms 23400 KB Output is correct
52 Correct 243 ms 34580 KB Output is correct
53 Correct 236 ms 33580 KB Output is correct
54 Correct 225 ms 32584 KB Output is correct
55 Correct 432 ms 42244 KB Output is correct
56 Correct 3531 ms 265124 KB Output is correct
57 Correct 871 ms 79516 KB Output is correct
58 Correct 795 ms 76444 KB Output is correct
59 Correct 862 ms 75832 KB Output is correct