/in/foo.cc: In function 'int main()':
/in/foo.cc:9:4: error: 'vector' is not a member of 'std'
    std::vector<std::vector<bool>> dp(2, std::vector<bool>(m + 1, false));
    ^~~
/in/foo.cc:9:16: error: 'vector' is not a member of 'std'
    std::vector<std::vector<bool>> dp(2, std::vector<bool>(m + 1, false));
                ^~~
/in/foo.cc:9:28: error: expected primary-expression before 'bool'
    std::vector<std::vector<bool>> dp(2, std::vector<bool>(m + 1, false));
                            ^~~~
/in/foo.cc:10:4: error: 'dp' was not declared in this scope
    dp[0][0] = true;
    ^~