oj.uz

Submission #403423

# Submission time Handle Problem Language Result Execution time Memory
403423 2021-05-13T07:16:50 Z lyc None (KOI17_shell) C++14
46 / 100
 2000 ms 26608 KB 
#include <bits/stdc++.h>
using namespace std;

#define TRACE(x) cerr << #x << " :: " << x << endl
#define _ << " " <<
#define SZ(x) (int)(x).size()
#define ALL(x) (x).begin(),(x).end()
#define FOR(i,a,b) for(int i=(a);i<=(b);++i)
#define RFOR(i,a,b) for (int i=(a);i>=(b);--i)
typedef pair<int,int> ii;

const int mxN = 1505;

int N, A[mxN][mxN], B[mxN][mxN], up[mxN][mxN];
long long S;

int main() {
    ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);

    cin >> N;

    FOR(i,1,N){
        FOR(j,1,N){
            cin >> A[i][j];

            B[i][j] = max(B[i-1][j], B[i][j-1]) + A[i][j];
            S += B[i][j];
        }
    }

    cout << S << '\n';
    FOR(i,1,N){
        char op;
        int r, c, v;
        cin >> op >> r >> c;
        v = (op == 'U' ? 1 : -1);

        queue<ii> q;
        A[r][c] += v;
        B[r][c] += v;
        S += v;
        q.push(ii(r,c));

        while (!q.empty()) {
            auto u = q.front(); q.pop();
            int dr[] = {0,1};
            int dc[] = {1,0};
            FOR(k,0,1){
                int nr = u.first + dr[k], nc = u.second + dc[k];
                if (nr <= N && nc <= N &&
                        max(B[nr-1][nc], B[nr][nc-1]) + A[nr][nc] != B[nr][nc]) {
                    B[nr][nc] += v;
                    S += v;
                    q.push(ii(nr,nc));
                }
            }
        }

        cout << S << '\n';
    }
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1100 KB Output is correct
2 Correct 3 ms 1100 KB Output is correct
3 Correct 6 ms 1100 KB Output is correct
4 Correct 15 ms 1200 KB Output is correct
5 Correct 14 ms 1100 KB Output is correct
6 Correct 14 ms 1200 KB Output is correct
7 Correct 3 ms 1100 KB Output is correct
8 Correct 3 ms 1100 KB Output is correct
9 Correct 3 ms 1100 KB Output is correct
10 Correct 2 ms 1100 KB Output is correct

Subtask #2
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 186 ms 17964 KB Output is correct
2 Correct 185 ms 17932 KB Output is correct
3 Correct 513 ms 18008 KB Output is correct
4 Correct 158 ms 17896 KB Output is correct
5 Correct 161 ms 17964 KB Output is correct
6 Correct 211 ms 18144 KB Output is correct
7 Correct 182 ms 17988 KB Output is correct
8 Correct 162 ms 17968 KB Output is correct
9 Correct 174 ms 18060 KB Output is correct
10 Correct 163 ms 17968 KB Output is correct

Subtask #3
0 / 54.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1100 KB Output is correct
2 Correct 3 ms 1100 KB Output is correct
3 Correct 6 ms 1100 KB Output is correct
4 Correct 15 ms 1200 KB Output is correct
5 Correct 14 ms 1100 KB Output is correct
6 Correct 14 ms 1200 KB Output is correct
7 Correct 3 ms 1100 KB Output is correct
8 Correct 3 ms 1100 KB Output is correct
9 Correct 3 ms 1100 KB Output is correct
10 Correct 186 ms 17964 KB Output is correct
11 Correct 185 ms 17932 KB Output is correct
12 Correct 513 ms 18008 KB Output is correct
13 Correct 158 ms 17896 KB Output is correct
14 Correct 161 ms 17964 KB Output is correct
15 Correct 211 ms 18144 KB Output is correct
16 Correct 182 ms 17988 KB Output is correct
17 Correct 162 ms 17968 KB Output is correct
18 Correct 174 ms 18060 KB Output is correct
19 Correct 163 ms 17968 KB Output is correct
20 Correct 2 ms 1100 KB Output is correct
21 Correct 245 ms 17968 KB Output is correct
22 Correct 263 ms 26588 KB Output is correct
23 Correct 253 ms 26480 KB Output is correct
24 Execution timed out 2059 ms 26608 KB Time limit exceeded
25 Halted 0 ms 0 KB -