oj.uz

답안 #502426

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
502426 2022-01-06T00:18:59 Z cig32 Crossing (JOI21_crossing) C++17
26 / 100
 7000 ms 265992 KB 
#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
using namespace std;

const int MAXN = 2e5 + 10;
const int MOD = 1e9 + 7;
mt19937_64 rng((int)std::chrono::steady_clock::now().time_since_epoch().count());
int rnd(int x, int y) {
    int u = uniform_int_distribution<int>(x, y)(rng);
    return u;
}
int bm(int b, int p) { // bigmod
    if(p==0) return 1;
    int r = bm(b, p/2);
    if(p&1) return (((r*r) % MOD) * b) % MOD;
    return (r*r) % MOD;
}
string gene(string a, string b) {
    string c;
    for(int i=0; i<a.size(); i++) {
        if(a[i] == b[i]) c += a[i];
        else {
            string t = "JOI";
            for(int j=0; j<3; j++) {
                if(a[i] != t[j] && b[i] != t[j]) c += t[j];
            }
        }
    }
    return c;
}
struct segtree_rurq { 
    // Range update range query, standard form 4 (assignment/sum)
    struct node {
        int upd = 0;
        int ans = 0;
        bool exist = 0;
    };

    vector<node> a;
    int mod = 0;
    //To be remained unchanged
    void u(int l, int r, int constl, int constr, int idx, int val) {
        if(l <= constl && constr <= r) {
            a[idx].upd = val;
            a[idx].ans = val * (constr-constl+1);
            a[idx].exist = 1;
            if(mod) {
                a[idx].upd %= mod;
                a[idx].ans %= mod;
            }
            return;
        }
        int mid = (constl+constr) >> 1;
        //Lazy propagation
        if(a[idx].exist == 1) {
            a[2*idx+1].upd = a[idx].upd;
            a[2*idx+2].upd = a[idx].upd;
            a[idx].upd = 0;
            a[2*idx+1].exist = 1;
            a[2*idx+2].exist = 1;
            a[idx].exist = 0;
            a[2*idx+1].ans = a[2*idx+1].upd * (mid-constl + 1);
            a[2*idx+2].ans = a[2*idx+2].upd * (constr-mid);
            a[idx].ans = a[2*idx+1].ans + a[2*idx+2].ans;
        }
        
        if(mid<l || r<constl) u(l, r, mid+1, constr, 2*idx+2, val);
        else if(constr<l || r<mid+1) u(l, r, constl, mid, 2*idx+1, val);
        else {
            u(l, r, constl, mid, 2*idx+1, val);
            u(l, r, mid+1, constr, 2*idx+2, val);
        }
        a[idx].ans = a[2*idx+1].ans + a[2*idx+2].ans;
        if(mod) a[idx].ans %= mod;
    }
    int qu(int l, int r, int constl, int constr, int idx) {
        if(l <= constl && constr <= r) return a[idx].ans;
        int mid = (constl+constr) >> 1;
        int ret;
        if(a[idx].exist == 1) {
            a[2*idx+1].upd = a[idx].upd;
            a[2*idx+2].upd = a[idx].upd;
            a[idx].upd = 0;
            a[2*idx+1].exist = 1;
            a[2*idx+2].exist = 1;
            a[idx].exist = 0;
            a[2*idx+1].ans = a[2*idx+1].upd * (mid-constl + 1);
            a[2*idx+2].ans = a[2*idx+2].upd * (constr-mid);
            a[idx].ans = a[2*idx+1].ans + a[2*idx+2].ans;
        }
        if(mid<l || r<constl) { 
            ret = qu(l, r, mid+1, constr, 2*idx+2);
        }
        else if(constr<l || r<mid+1) {
            ret = qu(l, r, constl, mid, 2*idx+1);
        }
        else {
            ret = qu(l, r, constl, mid, 2*idx+1) + qu(l, r, mid+1, constr, 2*idx+2);
        }
        if(mod) ret %= mod;
        return ret;
    }
    int sz;
    public:
    void set_mod(int x) {
        mod = x;
    }
    void update(int l, int r, int v) {
        u(l, r, 0, sz, 0, v);
    }
    int query(int l, int r) {
        return qu(l, r, 0, sz, 0);
    }
    void resize(int k) {
        sz = k;
        a.resize(4*k + 10);
    }
};
int code(char c) {
    return (c == 'O' ? 1 : (c == 'I' ? 2 : 0));
}
void solve(int tc) {
    int N;
    cin >> N;
    string s[9];
    for(int i=0; i<3; i++) cin >> s[i];
    s[3] = gene(s[0], s[1]);
    s[4] = gene(s[0], s[2]);
    s[5] = gene(s[1], s[2]);
    s[6] = gene(s[2], s[3]);
    s[7] = gene(s[1], s[4]);
    s[8] = gene(s[0], s[5]);
    segtree_rurq st[9][3][3];
    string word = "JOI";
    int dist[9] = {};
    int Q;
    cin >> Q;
    string t0;
    cin >> t0;
    for(int i=0; i<9; i++) {
        for(int j=0; j<N; j++) {
            if(t0[j] != s[i][j]) dist[i]++;
        }
    }
    vector<int> lis[9][3];
    for(int i=0; i<9; i++) {
        for(int j=0; j<N; j++) {
            lis[i][code(s[i][j])].push_back(j+1);
        }
    }
    
    for(int i=0; i<9; i++) {
        for(int j=0; j<3; j++) {
            for(int k=0; k<3; k++) {
                if(lis[i][j].empty()) continue;
                st[i][j][k].resize(lis[i][j].size());
//                st[i][j][k].update(0, lis[i][j].size(), 0);
                for(int l=0; l<lis[i][j].size(); l++) { 
                    if(t0[lis[i][j][l] - 1] == word[k]) {
                        st[i][j][k].update(l+1, l+1, 1);
                    }
                }
            }
        }
    }
    
    for(int i=0; i<=Q; i++) {
        if(i > 0) {
            int l, r;
            cin >> l >> r;
            char c;
            cin >> c;
            int L[9][3], R[9][3];
            for(int j=0; j<9; j++) {
                for(int k=0; k<3; k++) {
                    if(lis[j][k].empty()) {
                        L[j][k] = R[j][k] = -1;
                        continue;
                    }
                    int lb = 0, rb = lis[j][k].size() - 1;
                    while(lb < rb) {
                        int mid = (lb+rb) >> 1;
                        if(lis[j][k][mid] >= l) rb = mid;
                        else lb = mid+1;
                    }
                    L[j][k] = (lis[j][k][lb] >= l && lis[j][k][lb] <= r ? lb + 1 : -1);
                    lb = 0, rb = lis[j][k].size() - 1;
                    while(lb < rb) {
                        int mid = (lb+rb+1) >> 1;
                        if(lis[j][k][mid] <= r) lb = mid;
                        else rb = mid-1;
                    }
                    R[j][k] = (lis[j][k][lb] >= l && lis[j][k][lb] <= r ? lb + 1 : -1);
                }
            }
            for(int j=0; j<9; j++) {
                for(int k=0; k<3; k++) {
                    if(L[j][k] == -1 || R[j][k] == -1) continue;
                    for(int m=0; m<3; m++) {
                        st[j][k][m].update(L[j][k], R[j][k], 0);
                    }
                    st[j][k][code(c)].update(L[j][k], R[j][k], 1);
                }
                dist[j] = 0;
                for(int k=0; k<3; k++) {
                    if(lis[j][k].empty()) continue;
                    for(int m=0; m<3; m++) {
                        if(k != m) dist[j] += st[j][k][m].query(1, lis[j][k].size());
                    }
                }
            }
        }
        bool ret = 0;
        for(int j=0; j<9; j++) {
            ret |= (dist[j] == 0);
        }
        cout << (ret ? "Yes\n" : "No\n");
    }
}
int32_t main(){
    ios::sync_with_stdio(0); cin.tie(0);
    int t = 1; //cin >> t;
    for(int i=1; i<=t; i++) {
        solve(i);
    }
}

Compilation message

Main.cpp: In function 'std::string gene(std::string, std::string)':
Main.cpp:20:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |     for(int i=0; i<a.size(); i++) {
      |                  ~^~~~~~~~~
Main.cpp: In function 'void solve(int)':
Main.cpp:158:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  158 |                 for(int l=0; l<lis[i][j].size(); l++) {
      |                              ~^~~~~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1363 ms 960 KB Output is correct
2 Correct 1720 ms 1040 KB Output is correct
3 Correct 1938 ms 964 KB Output is correct
4 Correct 1333 ms 1000 KB Output is correct
5 Correct 1268 ms 972 KB Output is correct
6 Correct 1297 ms 1096 KB Output is correct
7 Correct 1222 ms 1112 KB Output is correct
8 Correct 1429 ms 944 KB Output is correct
9 Correct 1367 ms 1120 KB Output is correct
10 Correct 1483 ms 1040 KB Output is correct
11 Correct 1426 ms 1000 KB Output is correct
12 Correct 1414 ms 968 KB Output is correct
13 Correct 1465 ms 1036 KB Output is correct
14 Correct 1465 ms 1092 KB Output is correct
15 Correct 1396 ms 952 KB Output is correct
16 Correct 1469 ms 1012 KB Output is correct
17 Correct 1412 ms 1028 KB Output is correct
18 Correct 1016 ms 1104 KB Output is correct

Subtask #2
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1363 ms 960 KB Output is correct
2 Correct 1720 ms 1040 KB Output is correct
3 Correct 1938 ms 964 KB Output is correct
4 Correct 1333 ms 1000 KB Output is correct
5 Correct 1268 ms 972 KB Output is correct
6 Correct 1297 ms 1096 KB Output is correct
7 Correct 1222 ms 1112 KB Output is correct
8 Correct 1429 ms 944 KB Output is correct
9 Correct 1367 ms 1120 KB Output is correct
10 Correct 1483 ms 1040 KB Output is correct
11 Correct 1426 ms 1000 KB Output is correct
12 Correct 1414 ms 968 KB Output is correct
13 Correct 1465 ms 1036 KB Output is correct
14 Correct 1465 ms 1092 KB Output is correct
15 Correct 1396 ms 952 KB Output is correct
16 Correct 1469 ms 1012 KB Output is correct
17 Correct 1412 ms 1028 KB Output is correct
18 Correct 1016 ms 1104 KB Output is correct
19 Execution timed out 7102 ms 265992 KB Time limit exceeded
20 Halted 0 ms 0 KB -

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1363 ms 960 KB Output is correct
2 Correct 1720 ms 1040 KB Output is correct
3 Correct 1938 ms 964 KB Output is correct
4 Correct 1333 ms 1000 KB Output is correct
5 Correct 1268 ms 972 KB Output is correct
6 Correct 1297 ms 1096 KB Output is correct
7 Correct 1222 ms 1112 KB Output is correct
8 Correct 1429 ms 944 KB Output is correct
9 Correct 1367 ms 1120 KB Output is correct
10 Correct 1483 ms 1040 KB Output is correct
11 Correct 1426 ms 1000 KB Output is correct
12 Correct 1414 ms 968 KB Output is correct
13 Correct 1465 ms 1036 KB Output is correct
14 Correct 1465 ms 1092 KB Output is correct
15 Correct 1396 ms 952 KB Output is correct
16 Correct 1469 ms 1012 KB Output is correct
17 Correct 1412 ms 1028 KB Output is correct
18 Correct 1016 ms 1104 KB Output is correct
19 Correct 2065 ms 988 KB Output is correct
20 Correct 2259 ms 976 KB Output is correct
21 Correct 1625 ms 968 KB Output is correct
22 Correct 1278 ms 928 KB Output is correct
23 Correct 1597 ms 968 KB Output is correct
24 Correct 1512 ms 1112 KB Output is correct
25 Correct 1667 ms 1060 KB Output is correct
26 Correct 1365 ms 1200 KB Output is correct
27 Correct 1626 ms 1048 KB Output is correct
28 Correct 1420 ms 980 KB Output is correct
29 Correct 1611 ms 964 KB Output is correct
30 Correct 1295 ms 1108 KB Output is correct
31 Correct 1735 ms 960 KB Output is correct
32 Correct 1729 ms 1104 KB Output is correct
33 Correct 1754 ms 1088 KB Output is correct
34 Correct 1455 ms 980 KB Output is correct
35 Correct 1779 ms 1108 KB Output is correct
36 Correct 1759 ms 1116 KB Output is correct
37 Correct 1791 ms 1164 KB Output is correct
38 Correct 1730 ms 1264 KB Output is correct
39 Correct 1791 ms 1036 KB Output is correct
40 Correct 1785 ms 1140 KB Output is correct
41 Correct 1750 ms 1372 KB Output is correct
42 Correct 1776 ms 1044 KB Output is correct
43 Correct 1563 ms 1068 KB Output is correct
44 Correct 1764 ms 1028 KB Output is correct

Subtask #4
0 / 51.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1363 ms 960 KB Output is correct
2 Correct 1720 ms 1040 KB Output is correct
3 Correct 1938 ms 964 KB Output is correct
4 Correct 1333 ms 1000 KB Output is correct
5 Correct 1268 ms 972 KB Output is correct
6 Correct 1297 ms 1096 KB Output is correct
7 Correct 1222 ms 1112 KB Output is correct
8 Correct 1429 ms 944 KB Output is correct
9 Correct 1367 ms 1120 KB Output is correct
10 Correct 1483 ms 1040 KB Output is correct
11 Correct 1426 ms 1000 KB Output is correct
12 Correct 1414 ms 968 KB Output is correct
13 Correct 1465 ms 1036 KB Output is correct
14 Correct 1465 ms 1092 KB Output is correct
15 Correct 1396 ms 952 KB Output is correct
16 Correct 1469 ms 1012 KB Output is correct
17 Correct 1412 ms 1028 KB Output is correct
18 Correct 1016 ms 1104 KB Output is correct
19 Execution timed out 7102 ms 265992 KB Time limit exceeded
20 Halted 0 ms 0 KB -