Compilare: main.cpp: In function 'int nrb(int, int, std::vector<int>)': main.cpp:9:18: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 9 | while(sum<=x && cnt < c.size()){ | ~~~^~~ main.cpp:10:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 10 | if(i==c.size()){ | ~^~~~~~~~~~ main.cpp:16:15: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 16 | if(sum>x) | ~~~^~