oj.uz

Submission #283133

# Submission time Handle Problem Language Result Execution time Memory
283133 2020-08-25T10:23:17 Z mosiashvililuka Building 4 (JOI20_building4) C++14
100 / 100
 343 ms 44664 KB 
#include<bits/stdc++.h>
using namespace std;
int a,b,c,d,e,i,j,ii,jj,zx,xc,dpmn[1000009][2],dpmx[1000009][2],f[1000009],g[1000009],kl[1000009][2];
char pas[1000009];
int main(){
    ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);
    cin>>a;
    a*=2;
    for(i=1; i<=a; i++) cin>>f[i];
    for(i=1; i<=a; i++) cin>>g[i];
    for(i=0; i<=a; i++){
        for(j=0; j<=1; j++){
            dpmn[i][j]=a+3;
            dpmx[i][j]=0; 
        }
    }
    dpmn[0][0]=0;dpmx[0][0]=0;
    dpmn[0][1]=0;dpmx[0][1]=0;
    for(i=1; i<=a; i++){
        kl[i][0]=f[i];kl[i][1]=g[i];
        if(f[i]>=f[i-1]){
            dpmn[i][0]=min(dpmn[i][0],dpmn[i-1][0]+1);
            dpmx[i][0]=max(dpmx[i][0],dpmx[i-1][0]+1);
        }
        if(f[i]>=g[i-1]){
            dpmn[i][0]=min(dpmn[i][0],dpmn[i-1][1]+1);
            dpmx[i][0]=max(dpmx[i][0],dpmx[i-1][1]+1);
        }
        if(g[i]>=f[i-1]){
            dpmn[i][1]=min(dpmn[i][1],dpmn[i-1][0]);
            dpmx[i][1]=max(dpmx[i][1],dpmx[i-1][0]);
        }
        if(g[i]>=g[i-1]){
            dpmn[i][1]=min(dpmn[i][1],dpmn[i-1][1]);
            dpmx[i][1]=max(dpmx[i][1],dpmx[i-1][1]);
        }
    }
    j=-1;
    if(dpmn[a][0]<=a/2&&a/2<=dpmx[a][0]){
        j=0;
    }
    if(dpmn[a][1]<=a/2&&a/2<=dpmx[a][1]){
        j=1;
    }
    if(j==-1){
        cout<<-1;
        return 0;
    }
    //cout<<j<<endl;
    zx=a/2;
    for(i=a; i>=1; i--){
        if(j==-1){
            cout<<-1;
            return 0;
        }
        xc=-1;
        if(j==0) jj=1; else jj=0;
        if(j==0) zx--;
        if(j==0) pas[i]='A'; else pas[i]='B';
        if(kl[i][j]>=kl[i-1][j]&&dpmn[i-1][j]<=zx&&zx<=dpmx[i-1][j]){
            xc=j;
        }
        if(kl[i][j]>=kl[i-1][jj]&&dpmn[i-1][jj]<=zx&&zx<=dpmx[i-1][jj]){
            xc=jj;
        }
        j=xc;
    }
    for(i=1; i<=a; i++) cout<<pas[i];
    return 0;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 512 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 1 ms 512 KB Output is correct
8 Correct 2 ms 512 KB Output is correct
9 Correct 2 ms 512 KB Output is correct
10 Correct 1 ms 512 KB Output is correct
11 Correct 2 ms 512 KB Output is correct
12 Correct 2 ms 640 KB Output is correct
13 Correct 2 ms 640 KB Output is correct
14 Correct 2 ms 640 KB Output is correct
15 Correct 2 ms 640 KB Output is correct
16 Correct 2 ms 640 KB Output is correct
17 Correct 2 ms 640 KB Output is correct
18 Correct 2 ms 640 KB Output is correct
19 Correct 2 ms 640 KB Output is correct
20 Correct 1 ms 512 KB Output is correct
21 Correct 1 ms 512 KB Output is correct
22 Correct 2 ms 512 KB Output is correct
23 Correct 1 ms 512 KB Output is correct
24 Correct 2 ms 640 KB Output is correct
25 Correct 1 ms 512 KB Output is correct
26 Correct 1 ms 512 KB Output is correct
27 Correct 1 ms 512 KB Output is correct
28 Correct 1 ms 512 KB Output is correct
29 Correct 1 ms 512 KB Output is correct
30 Correct 2 ms 512 KB Output is correct
31 Correct 1 ms 512 KB Output is correct
32 Correct 2 ms 512 KB Output is correct
33 Correct 1 ms 512 KB Output is correct

Subtask #2
89.0 / 89.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 512 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 1 ms 512 KB Output is correct
8 Correct 2 ms 512 KB Output is correct
9 Correct 2 ms 512 KB Output is correct
10 Correct 1 ms 512 KB Output is correct
11 Correct 2 ms 512 KB Output is correct
12 Correct 2 ms 640 KB Output is correct
13 Correct 2 ms 640 KB Output is correct
14 Correct 2 ms 640 KB Output is correct
15 Correct 2 ms 640 KB Output is correct
16 Correct 2 ms 640 KB Output is correct
17 Correct 2 ms 640 KB Output is correct
18 Correct 2 ms 640 KB Output is correct
19 Correct 2 ms 640 KB Output is correct
20 Correct 1 ms 512 KB Output is correct
21 Correct 1 ms 512 KB Output is correct
22 Correct 2 ms 512 KB Output is correct
23 Correct 1 ms 512 KB Output is correct
24 Correct 2 ms 640 KB Output is correct
25 Correct 1 ms 512 KB Output is correct
26 Correct 1 ms 512 KB Output is correct
27 Correct 1 ms 512 KB Output is correct
28 Correct 1 ms 512 KB Output is correct
29 Correct 1 ms 512 KB Output is correct
30 Correct 2 ms 512 KB Output is correct
31 Correct 1 ms 512 KB Output is correct
32 Correct 2 ms 512 KB Output is correct
33 Correct 1 ms 512 KB Output is correct
34 Correct 247 ms 31864 KB Output is correct
35 Correct 294 ms 31864 KB Output is correct
36 Correct 263 ms 31352 KB Output is correct
37 Correct 271 ms 31992 KB Output is correct
38 Correct 259 ms 31972 KB Output is correct
39 Correct 256 ms 32248 KB Output is correct
40 Correct 276 ms 34168 KB Output is correct
41 Correct 253 ms 32760 KB Output is correct
42 Correct 272 ms 33308 KB Output is correct
43 Correct 343 ms 34296 KB Output is correct
44 Correct 287 ms 34296 KB Output is correct
45 Correct 326 ms 34300 KB Output is correct
46 Correct 298 ms 34296 KB Output is correct
47 Correct 298 ms 34424 KB Output is correct
48 Correct 289 ms 34296 KB Output is correct
49 Correct 276 ms 34424 KB Output is correct
50 Correct 305 ms 34296 KB Output is correct
51 Correct 290 ms 34276 KB Output is correct
52 Correct 235 ms 41336 KB Output is correct
53 Correct 219 ms 41212 KB Output is correct
54 Correct 230 ms 41336 KB Output is correct
55 Correct 213 ms 40952 KB Output is correct
56 Correct 274 ms 35320 KB Output is correct
57 Correct 244 ms 44408 KB Output is correct
58 Correct 246 ms 44664 KB Output is correct
59 Correct 247 ms 44464 KB Output is correct
60 Correct 240 ms 43000 KB Output is correct
61 Correct 250 ms 43768 KB Output is correct
62 Correct 252 ms 43640 KB Output is correct
63 Correct 253 ms 43512 KB Output is correct
64 Correct 248 ms 41848 KB Output is correct
65 Correct 251 ms 42744 KB Output is correct