Compilare: main.cpp: In function 'void solve()': main.cpp:47:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 47 | for(int i = 1; i < v.size(); ++i) | ~~^~~~~~~~~~ main.cpp:51:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 51 | while(i + Z[i] < v.size() && v[i + Z[i]] == v[Z[i]]) | ~~~~~~~~~^~~~~~~~~~ main.cpp:60:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | for(int i = 1; i < v.size(); ++i) | ~~^~~~~~~~~~ main.cpp:65:41: warning: left operand of comma operator has no effect [-Wunused-value] 65 | int ans = (iesire[i] - first[i] + 1, Z[first[i]]); | ~~~~~~~~~~~~~~~~~~~~~^~~