Compilare: main.cpp: In function 'int main()': main.cpp:72:7: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else] 72 | if(nrpar==2) | ^ main.cpp:86:22: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 86 | if(circuit.size()!=n){ | ~~~~~~~~~~~~~~^~~