oj.uz

Submission #784315

# Submission time Handle Problem Language Result Execution time Memory
784315 2023-07-16T02:30:18 Z Charizard2021 Crossing (JOI21_crossing) C++17
100 / 100
 1510 ms 27500 KB 
#include <bits/stdc++.h>
using namespace std;
const int N = 1000001;
map<vector<int>, bool> visited;
vector<vector<int> > val2;
int L[N], R[N];
int blsize = 501;
bool works[N][10];
int values[N];
int opt[N][10];
vector <int> b;
vector<int> val(vector<int> &a, vector<int> &b){
    vector <int> ans;
    for(int i = 0; i < a.size(); i++){
        int x = a[i] + b[i];
        x = -x;
        x %= 3;
        x += 3;
        x %= 3;
        ans.push_back(x);
    }
    return ans;
}
void dp(vector <int> &u){
    visited[u] = true;
    val2.push_back(u);
    vector<vector <int> > q;
    for(auto v : val2){
        vector<int> next2 = val(v, u);
        if(visited[next2]){
            continue;
        }
        q.push_back(next2);
        visited[next2] = true;
    }
    for(auto to : q){
        dp(to);
    }
}
void update_block(int ind, int v, int bl){
    if(opt[bl][ind] == v){
        works[bl][ind] = true;
    }
    else{
        works[bl][ind] = false;
    }
    values[bl] = v;
}
void fil(int bl){
    if(values[bl] == -1){
        return;
    }
    for(int i = L[bl]; i <= R[bl]; i++){
        b[i] = values[bl];
    }
    values[bl] = -1;
}
bool check(int bl, int ind){
    for(int i = L[bl]; i <= R[bl]; i++){
        if(b[i] != val2[ind][i]){
            return false;
        }
    }
    return true;
}
void update_ran(int ind, int l, int r, int v){
    int bl = l / blsize;
    works[bl][ind] = false;
    fil(bl);
    for(int i = l; i <= r; i++){
        b[i] = v;
    }
    works[bl][ind] = check(bl, ind);
}

bool solve(int sz){
    bool ans = false;
    for(int j = 0; j < val2.size(); j++){
        bool cur = true;
        for(int i= 0; i <= sz; i++){
            cur &= works[i][j];
        }
        ans |= cur;
    }
    return ans;
}

int main(){
    int n;
    cin >> n;
    int cur = 1;
    int curbl = 0;
    L[0] = 0;
    for(int i = 1; i < n; i++){
        if(cur + 1 > blsize){
            R[curbl] = i - 1;
            cur = 1;
            L[++curbl] = i;
        }
        else{
            cur++;
        }
    }
    R[curbl] = n - 1;
    for(int i = 0; i <= curbl; i++){
        values[i] = -1;
    }
    string a[3];
    for(int i = 0; i < 3; i++){
        vector<int> v;
        cin >> a[i];
        for(int j = 0; j < n; j++){
            if(a[i][j] == 'O'){
                v.push_back(0);
            }
            else if(a[i][j] == 'J'){
                v.push_back(1);
            }
            else{
                v.push_back(2);
            }
        }
        dp(v);
    }
    int q;
    cin >> q;
    for(int i = 0; i < n; i++){
        char x;
        cin >> x;
        if(x == 'J'){
            b.push_back(1);
        }
        else if(x == 'O'){
            b.push_back(0);
        }
        else{
            b.push_back(2);
        }
    }
    for(int i = 0; i < n; i++){
        for(int j = 0; j < val2.size(); j++){
            update_ran(j, i, i, b[i]);
        }
    }
    for(int j = 0; j < val2.size(); j++){
        for(int i = 0; i <= curbl; i++){
            opt[i][j] = val2[j][L[i]];
            for(int x = L[i] + 1; x <= R[i]; x++)
                if(val2[j][x] != val2[j][x - 1])
                    opt[i][j] = -1;
        }
    }
    solve(curbl) ? cout << "Yes\n" : cout << "No\n";
    while(q--){
        int l,r; cin >> l >> r;
        char c; cin >> c;
        int x;
        if(c == 'O')
            x = 0;
        if(c == 'J')
            x = 1;
        if(c == 'I')
            x = 2;
        l--, r--;
        int X = l / blsize;
        int Y = r / blsize;
        if(X == Y){
            for(int j = 0; j < val2.size(); j++)
                update_ran(j, l, r, x);
        }
        else{
            for(int i = X + 1; i < Y; i++){
                for(int j = 0; j < val2.size(); j++)
                    update_block(j, x, i);
            }
            for(int j = 0; j < val2.size(); j++){
                update_ran(j, l, R[X], x);
                update_ran(j, L[Y], r, x);
            }
        }
        solve(curbl) ? cout << "Yes\n" : cout << "No\n";
    }
    return 0;
}

Compilation message

Main.cpp: In function 'std::vector<int> val(std::vector<int>&, std::vector<int>&)':
Main.cpp:14:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |     for(int i = 0; i < a.size(); i++){
      |                    ~~^~~~~~~~~~
Main.cpp: In function 'bool solve(int)':
Main.cpp:78:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   78 |     for(int j = 0; j < val2.size(); j++){
      |                    ~~^~~~~~~~~~~~~
Main.cpp: In function 'int main()':
Main.cpp:141:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  141 |         for(int j = 0; j < val2.size(); j++){
      |                        ~~^~~~~~~~~~~~~
Main.cpp:145:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  145 |     for(int j = 0; j < val2.size(); j++){
      |                    ~~^~~~~~~~~~~~~
Main.cpp:168:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  168 |             for(int j = 0; j < val2.size(); j++)
      |                            ~~^~~~~~~~~~~~~
Main.cpp:173:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  173 |                 for(int j = 0; j < val2.size(); j++)
      |                                ~~^~~~~~~~~~~~~
Main.cpp:176:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  176 |             for(int j = 0; j < val2.size(); j++){
      |                            ~~^~~~~~~~~~~~~
Main.cpp:41:5: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
   41 |     if(opt[bl][ind] == v){
      |     ^~
Main.cpp:157:13: note: 'x' was declared here
  157 |         int x;
      |             ^

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 262 ms 2256 KB Output is correct
2 Correct 319 ms 2444 KB Output is correct
3 Correct 314 ms 2212 KB Output is correct
4 Correct 273 ms 2268 KB Output is correct
5 Correct 271 ms 2304 KB Output is correct
6 Correct 268 ms 2296 KB Output is correct
7 Correct 284 ms 2300 KB Output is correct
8 Correct 284 ms 2448 KB Output is correct
9 Correct 291 ms 2360 KB Output is correct
10 Correct 282 ms 2420 KB Output is correct
11 Correct 280 ms 2396 KB Output is correct
12 Correct 287 ms 2536 KB Output is correct
13 Correct 278 ms 2352 KB Output is correct
14 Correct 291 ms 2504 KB Output is correct
15 Correct 278 ms 2432 KB Output is correct
16 Correct 277 ms 2448 KB Output is correct
17 Correct 296 ms 2348 KB Output is correct
18 Correct 308 ms 2372 KB Output is correct

Subtask #2
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 262 ms 2256 KB Output is correct
2 Correct 319 ms 2444 KB Output is correct
3 Correct 314 ms 2212 KB Output is correct
4 Correct 273 ms 2268 KB Output is correct
5 Correct 271 ms 2304 KB Output is correct
6 Correct 268 ms 2296 KB Output is correct
7 Correct 284 ms 2300 KB Output is correct
8 Correct 284 ms 2448 KB Output is correct
9 Correct 291 ms 2360 KB Output is correct
10 Correct 282 ms 2420 KB Output is correct
11 Correct 280 ms 2396 KB Output is correct
12 Correct 287 ms 2536 KB Output is correct
13 Correct 278 ms 2352 KB Output is correct
14 Correct 291 ms 2504 KB Output is correct
15 Correct 278 ms 2432 KB Output is correct
16 Correct 277 ms 2448 KB Output is correct
17 Correct 296 ms 2348 KB Output is correct
18 Correct 308 ms 2372 KB Output is correct
19 Correct 639 ms 11880 KB Output is correct
20 Correct 770 ms 11800 KB Output is correct
21 Correct 538 ms 9828 KB Output is correct
22 Correct 415 ms 9264 KB Output is correct
23 Correct 334 ms 3696 KB Output is correct
24 Correct 323 ms 3512 KB Output is correct
25 Correct 480 ms 11896 KB Output is correct
26 Correct 490 ms 11916 KB Output is correct
27 Correct 702 ms 11832 KB Output is correct
28 Correct 563 ms 11872 KB Output is correct
29 Correct 642 ms 10156 KB Output is correct
30 Correct 353 ms 3592 KB Output is correct
31 Correct 650 ms 11844 KB Output is correct
32 Correct 500 ms 9748 KB Output is correct
33 Correct 325 ms 3560 KB Output is correct
34 Correct 536 ms 11896 KB Output is correct
35 Correct 408 ms 8860 KB Output is correct
36 Correct 325 ms 3520 KB Output is correct
37 Correct 319 ms 3544 KB Output is correct
38 Correct 787 ms 11664 KB Output is correct
39 Correct 624 ms 11924 KB Output is correct
40 Correct 431 ms 7948 KB Output is correct
41 Correct 927 ms 12192 KB Output is correct
42 Correct 847 ms 11336 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 262 ms 2256 KB Output is correct
2 Correct 319 ms 2444 KB Output is correct
3 Correct 314 ms 2212 KB Output is correct
4 Correct 273 ms 2268 KB Output is correct
5 Correct 271 ms 2304 KB Output is correct
6 Correct 268 ms 2296 KB Output is correct
7 Correct 284 ms 2300 KB Output is correct
8 Correct 284 ms 2448 KB Output is correct
9 Correct 291 ms 2360 KB Output is correct
10 Correct 282 ms 2420 KB Output is correct
11 Correct 280 ms 2396 KB Output is correct
12 Correct 287 ms 2536 KB Output is correct
13 Correct 278 ms 2352 KB Output is correct
14 Correct 291 ms 2504 KB Output is correct
15 Correct 278 ms 2432 KB Output is correct
16 Correct 277 ms 2448 KB Output is correct
17 Correct 296 ms 2348 KB Output is correct
18 Correct 308 ms 2372 KB Output is correct
19 Correct 287 ms 2284 KB Output is correct
20 Correct 432 ms 2288 KB Output is correct
21 Correct 283 ms 2380 KB Output is correct
22 Correct 310 ms 2148 KB Output is correct
23 Correct 294 ms 2376 KB Output is correct
24 Correct 283 ms 2276 KB Output is correct
25 Correct 288 ms 2376 KB Output is correct
26 Correct 273 ms 2344 KB Output is correct
27 Correct 320 ms 2464 KB Output is correct
28 Correct 287 ms 2136 KB Output is correct
29 Correct 296 ms 2408 KB Output is correct
30 Correct 262 ms 2260 KB Output is correct
31 Correct 312 ms 2352 KB Output is correct
32 Correct 302 ms 2556 KB Output is correct
33 Correct 312 ms 2456 KB Output is correct
34 Correct 282 ms 2248 KB Output is correct
35 Correct 303 ms 2368 KB Output is correct
36 Correct 299 ms 2464 KB Output is correct
37 Correct 303 ms 2428 KB Output is correct
38 Correct 306 ms 2540 KB Output is correct
39 Correct 302 ms 2428 KB Output is correct
40 Correct 300 ms 2408 KB Output is correct
41 Correct 303 ms 2556 KB Output is correct
42 Correct 320 ms 2452 KB Output is correct
43 Correct 313 ms 2384 KB Output is correct
44 Correct 302 ms 2452 KB Output is correct

Subtask #4
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 262 ms 2256 KB Output is correct
2 Correct 319 ms 2444 KB Output is correct
3 Correct 314 ms 2212 KB Output is correct
4 Correct 273 ms 2268 KB Output is correct
5 Correct 271 ms 2304 KB Output is correct
6 Correct 268 ms 2296 KB Output is correct
7 Correct 284 ms 2300 KB Output is correct
8 Correct 284 ms 2448 KB Output is correct
9 Correct 291 ms 2360 KB Output is correct
10 Correct 282 ms 2420 KB Output is correct
11 Correct 280 ms 2396 KB Output is correct
12 Correct 287 ms 2536 KB Output is correct
13 Correct 278 ms 2352 KB Output is correct
14 Correct 291 ms 2504 KB Output is correct
15 Correct 278 ms 2432 KB Output is correct
16 Correct 277 ms 2448 KB Output is correct
17 Correct 296 ms 2348 KB Output is correct
18 Correct 308 ms 2372 KB Output is correct
19 Correct 639 ms 11880 KB Output is correct
20 Correct 770 ms 11800 KB Output is correct
21 Correct 538 ms 9828 KB Output is correct
22 Correct 415 ms 9264 KB Output is correct
23 Correct 334 ms 3696 KB Output is correct
24 Correct 323 ms 3512 KB Output is correct
25 Correct 480 ms 11896 KB Output is correct
26 Correct 490 ms 11916 KB Output is correct
27 Correct 702 ms 11832 KB Output is correct
28 Correct 563 ms 11872 KB Output is correct
29 Correct 642 ms 10156 KB Output is correct
30 Correct 353 ms 3592 KB Output is correct
31 Correct 650 ms 11844 KB Output is correct
32 Correct 500 ms 9748 KB Output is correct
33 Correct 325 ms 3560 KB Output is correct
34 Correct 536 ms 11896 KB Output is correct
35 Correct 408 ms 8860 KB Output is correct
36 Correct 325 ms 3520 KB Output is correct
37 Correct 319 ms 3544 KB Output is correct
38 Correct 787 ms 11664 KB Output is correct
39 Correct 624 ms 11924 KB Output is correct
40 Correct 431 ms 7948 KB Output is correct
41 Correct 927 ms 12192 KB Output is correct
42 Correct 847 ms 11336 KB Output is correct
43 Correct 287 ms 2284 KB Output is correct
44 Correct 432 ms 2288 KB Output is correct
45 Correct 283 ms 2380 KB Output is correct
46 Correct 310 ms 2148 KB Output is correct
47 Correct 294 ms 2376 KB Output is correct
48 Correct 283 ms 2276 KB Output is correct
49 Correct 288 ms 2376 KB Output is correct
50 Correct 273 ms 2344 KB Output is correct
51 Correct 320 ms 2464 KB Output is correct
52 Correct 287 ms 2136 KB Output is correct
53 Correct 296 ms 2408 KB Output is correct
54 Correct 262 ms 2260 KB Output is correct
55 Correct 312 ms 2352 KB Output is correct
56 Correct 302 ms 2556 KB Output is correct
57 Correct 312 ms 2456 KB Output is correct
58 Correct 282 ms 2248 KB Output is correct
59 Correct 303 ms 2368 KB Output is correct
60 Correct 299 ms 2464 KB Output is correct
61 Correct 303 ms 2428 KB Output is correct
62 Correct 306 ms 2540 KB Output is correct
63 Correct 302 ms 2428 KB Output is correct
64 Correct 300 ms 2408 KB Output is correct
65 Correct 303 ms 2556 KB Output is correct
66 Correct 320 ms 2452 KB Output is correct
67 Correct 313 ms 2384 KB Output is correct
68 Correct 302 ms 2452 KB Output is correct
69 Correct 966 ms 23316 KB Output is correct
70 Correct 1510 ms 27260 KB Output is correct
71 Correct 366 ms 3932 KB Output is correct
72 Correct 331 ms 3740 KB Output is correct
73 Correct 335 ms 3808 KB Output is correct
74 Correct 538 ms 11108 KB Output is correct
75 Correct 335 ms 3764 KB Output is correct
76 Correct 505 ms 13504 KB Output is correct
77 Correct 492 ms 11312 KB Output is correct
78 Correct 329 ms 3744 KB Output is correct
79 Correct 336 ms 3816 KB Output is correct
80 Correct 616 ms 20140 KB Output is correct
81 Correct 384 ms 4352 KB Output is correct
82 Correct 744 ms 27228 KB Output is correct
83 Correct 764 ms 23592 KB Output is correct
84 Correct 389 ms 4420 KB Output is correct
85 Correct 378 ms 4428 KB Output is correct
86 Correct 844 ms 21088 KB Output is correct
87 Correct 1000 ms 27312 KB Output is correct
88 Correct 482 ms 4368 KB Output is correct
89 Correct 781 ms 24792 KB Output is correct
90 Correct 861 ms 27248 KB Output is correct
91 Correct 422 ms 4448 KB Output is correct
92 Correct 614 ms 20960 KB Output is correct
93 Correct 388 ms 4352 KB Output is correct
94 Correct 385 ms 4368 KB Output is correct
95 Correct 387 ms 4460 KB Output is correct
96 Correct 913 ms 11688 KB Output is correct
97 Correct 1279 ms 27368 KB Output is correct
98 Correct 761 ms 18448 KB Output is correct
99 Correct 1361 ms 27500 KB Output is correct
100 Correct 1495 ms 26832 KB Output is correct