Compilare: main.cpp: In function 'void print()': main.cpp:37:4: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int z = a ; z <= b ; z++) ^~~ main.cpp:52:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' cout << rezultat; ^~~~ main.cpp: In function 'void rezi()': main.cpp:60:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < expr.size() ; i++) ~~^~~~~~~~~~~~~