Compilare: main.cpp: In function 'void valid(char, int, int&)': main.cpp:33:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation] 33 | if (s == '(' || s == '[' || s == '{') | ^~ main.cpp:37:13: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if' 37 | if (!st.empty() && ok(st.top().first, s)) | ^~