/in/foo.cc: In function 'int main()':
/in/foo.cc:32:20: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' [-Wc++17-extensions]
   32 |         for (auto &[s, t]: paths) {
      |                    ^
/in/foo.cc:43:28: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' [-Wc++17-extensions]
   43 |                 for (auto &[s, t]: paths) {
      |                            ^