Submission #3411547


Source Code Expand

#if !defined(__clang__) && defined(__GNUC__)
#include <bits/stdc++.h>
#else
#include <cstdlib>
#include <climits>
#include <iostream>
#include <cstdint>
#include <vector>
#include <string>
#include <complex>
#include <bitset>
#include <queue>
#include <deque>
#include <stack>
#include <utility>
#include <set>
#include <map>
#include <unordered_set>
#include <unordered_map>
#include <regex>
#endif //  !defined(__clang__) && defined(__GNUG__)
#include <boost/lexical_cast.hpp>
#include <boost/algorithm/string.hpp>
#include <boost/multi_array.hpp>
#include <boost/optional.hpp>
#include <boost/math/common_factor_rt.hpp>

constexpr int64_t DIV1097 = 1000000007LL;

using namespace std;

int main()
{
    int64_t H, W;
    std::cin >> H >> W;

    std::map<char, size_t> C;
    for (size_t i = 0; i < H*W; ++i) {
        char c;
        std::cin >> c;
        C[c]++;
    }

    int64_t f, t;
    f = t = 0;
    for (auto ac: C) {
        if (ac.second % 4 == 1) {
            f++;
        }
        if (ac.second % 4 == 3) {
            f++;
            t++;
        }
        if (ac.second % 4 == 2) {
            t++;
        }
    }

    if (H%2 == 1 && W%2 == 1) {
        if (f != 1) {
            std::cout << "No" << std::endl;
            return 0;
        }
        if (t > (H-1)/2 + (W-1)/2) {
            std::cout << "No" << std::endl;
            return 0;
        }
    }
    else if (H%2 == 0 && W%2 == 0) {
        if (f != 0 || t != 0) {
            std::cout << "No" << std::endl;
            return 0;
        }
    }
    else if (H%2 == 1 && W%2 == 0) {
        if (f != 0) {
            std::cout << "No" << std::endl;
            return 0;
        }
        if (t > std::abs(W/2)) {
            std::cout << "No" << std::endl;
            return 0;
        }
    }
    else {
        if (f != 0) {
            std::cout << "No" << std::endl;
            return 0;
        }
        if (t > std::abs(H/2)) {
            std::cout << "No" << std::endl;
            return 0;
        }
    }

    std::cout << "Yes" << std::endl;

    return 0;
}

Submission Info

Submission Time
Task C - Palindromic Matrix
User sumomoneko
Language C++14 (GCC 5.4.1)
Score 400
Code Size 2068 Byte
Status AC
Exec Time 2 ms
Memory 256 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 400 / 400
Status
AC × 5
AC × 32
Set Name Test Cases
Sample 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt, 0_04.txt
All 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt, 0_04.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 1_13.txt, 1_14.txt, 1_15.txt, 1_16.txt, 1_17.txt, 1_18.txt, 1_19.txt, 1_20.txt, 1_21.txt, 1_22.txt, 1_23.txt, 1_24.txt, 1_25.txt, 1_26.txt
Case Name Status Exec Time Memory
0_00.txt AC 1 ms 256 KB
0_01.txt AC 1 ms 256 KB
0_02.txt AC 1 ms 256 KB
0_03.txt AC 1 ms 256 KB
0_04.txt AC 1 ms 256 KB
1_00.txt AC 1 ms 256 KB
1_01.txt AC 1 ms 256 KB
1_02.txt AC 1 ms 256 KB
1_03.txt AC 1 ms 256 KB
1_04.txt AC 1 ms 256 KB
1_05.txt AC 1 ms 256 KB
1_06.txt AC 1 ms 256 KB
1_07.txt AC 1 ms 256 KB
1_08.txt AC 1 ms 256 KB
1_09.txt AC 2 ms 256 KB
1_10.txt AC 2 ms 256 KB
1_11.txt AC 2 ms 256 KB
1_12.txt AC 2 ms 256 KB
1_13.txt AC 2 ms 256 KB
1_14.txt AC 2 ms 256 KB
1_15.txt AC 1 ms 256 KB
1_16.txt AC 2 ms 256 KB
1_17.txt AC 2 ms 256 KB
1_18.txt AC 2 ms 256 KB
1_19.txt AC 2 ms 256 KB
1_20.txt AC 2 ms 256 KB
1_21.txt AC 1 ms 256 KB
1_22.txt AC 1 ms 256 KB
1_23.txt AC 1 ms 256 KB
1_24.txt AC 1 ms 256 KB
1_25.txt AC 1 ms 256 KB
1_26.txt AC 1 ms 256 KB