zigzag.cpp: In lambda function:
zigzag.cpp:22:30: warning: comparison of integer expressions of different signedness: 'int' and 'const long unsigned int' [-Wsign-compare]
22 | for(int i = 0; i < min(x.size(), y.size()); i++) {
| ~~^~~~~~~~~~~~~~~~~~~~~~~~~
zigzag.cpp: In function 'void solve()':
zigzag.cpp:38:22: warning: array subscript has type 'char' [-Wchar-subscripts]
38 | cout << v[dq[ch].front()] << "\n";
| ^~
zigzag.cpp:39:12: warning: array subscript has type 'char' [-Wchar-subscripts]
39 | dq[ch].push_back(dq[ch].front());
| ^~
zigzag.cpp:39:29: warning: array subscript has type 'char' [-Wchar-subscripts]
39 | dq[ch].push_back(dq[ch].front());
| ^~
zigzag.cpp:40:12: warning: array subscript has type 'char' [-Wchar-subscripts]
40 | dq[ch].pop_front();
| ^~
zigzag.cpp: In function 'int main()':
zigzag.cpp:48:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
48 | freopen("in.txt", "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
zigzag.cpp:49:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
49 | freopen("out.txt", "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~