Submission #416366

#	Time	Username	Problem	Language	Result	Execution time	Memory
416366		model_code	RPS string (innopolis2021_final_C)	C++17	16 / 100	3069 ms	7244 KiB

Main

#include <bits/stdc++.h>

using namespace std;

const int MAXN = 5000 + 10;
bool dp[MAXN][MAXN][3];
int a[MAXN];
map<char, int> cv = {{'r', 0}, {'s', 1}, {'p', 2}};
bool win[3][3];
bool win1[3][3];

string solve_stupid(int t, string s) {
    for (int j = 0; j < 3; ++j) {
        for (int k = 0; k <= 1; ++k) {
            win[j][(j + k) % 3] = 1;
        }
    }
    int n = s.size();
    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < n; ++j) {
            for (int k = 0; k < 3; ++k) {
                dp[i][j][k] = 0;
            }
        }
    }
    for (int i = 0; i < n; ++i) {
        a[i] = cv[s[i]];
        dp[i][i][a[i]] = 1;
    }
    for (int l = n - 1; l >= 0; --l) {
        for (int r = l + 1; r < n; ++r) {
            for (int m = l; m < r; ++m) {
                for (int k = 0; k < 3; ++k) {
                    for (int k1 = 0; k1 < 3; ++k1) {
                        if (dp[l][m][k] && dp[m + 1][r][k1]) {
                            if (win[k][k1]) {
                                dp[l][r][k] = 1;
                            }
                            if (win[k1][k]) {
                                dp[l][r][k1] = 1;
                            }
                        }
                    }
                }
            }
        }
    }
    string ans;
    for (int i = 0; i < n; ++i) {
        bool left = 0;
        if (i == 0) {
            left = 1;
        } else {
            for (int k = 0; k < 3; ++k) {
                if (win[a[i]][k] && dp[0][i - 1][k]) {
                    left = 1;
                }
            }
        }
        bool right = 0;
        if (i == n - 1) {
            right = 1;
        } else {
            for (int k = 0; k < 3; ++k) {
                if (win[a[i]][k] && dp[i + 1][n - 1][k]) {
                    right = 1;
                }
            }
        }
        if (left && right) {
            ans.push_back('1');
        } else {
            ans.push_back('0');
        }
    }
    return ans;
}

int main() {
    int tests;
    cin >> tests;
    for (int i = 0; i < tests; ++i) {
        int t;
        cin >> t;
        string s;
        cin >> s;
        cout << solve_stupid(t - 1, s) << '\n';
    }
}

• Subtask 1: 7 / 7
• Subtask 2: 9 / 9
• Subtask 3: 0 / 10
• Subtask 4: 0 / 11
• Subtask 5: 0 / 7
• Subtask 6: 0 / 13
• Subtask 7: 0 / 10
• Subtask 8: 0 / 33