Compilare: main.cpp: In function 'int main()': main.cpp:30:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation] 30 | if (op==4) | ^~ main.cpp:33:13: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if' 33 | if (op==1) | ^~