Compilare: main.cpp: In function 'void gen_mult()': main.cpp:31:16: warning: array subscript has type 'char' [-Wchar-subscripts] 31 | if(!mpf[s[0]]) | ~~~^ main.cpp:32:16: warning: array subscript has type 'char' [-Wchar-subscripts] 32 | mpf[s[0]]=++lid; | ~~~^ main.cpp:33:16: warning: array subscript has type 'char' [-Wchar-subscripts] 33 | mid[mpf[s[0]]]=mpf[s[0]]; | ~~~^ main.cpp:33:27: warning: array subscript has type 'char' [-Wchar-subscripts] 33 | mid[mpf[s[0]]]=mpf[s[0]]; | ~~~^ main.cpp:41:18: warning: array subscript has type 'char' [-Wchar-subscripts] 41 | v[mpf[s[0]]].push_back(i); | ~~~^ main.cpp: In function 'std::vector<int> unite(std::vector<int>&, std::vector<int>&)': main.cpp:48:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | while(i<a.size() && j<b.size()) | ~^~~~~~~~~ main.cpp:48:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | while(i<a.size() && j<b.size()) | ~^~~~~~~~~ main.cpp:67:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 67 | while(i<a.size()) | ~^~~~~~~~~ main.cpp:73:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 73 | while(j<b.size()) | ~^~~~~~~~~ main.cpp: In function 'std::vector<int> intersect(std::vector<int>&, std::vector<int>&)': main.cpp:87:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 87 | while(j<b.size() && b[j] < i) | ~^~~~~~~~~ main.cpp:89:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 89 | if(j>=b.size()) | ~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:131:49: warning: array subscript has type 'char' [-Wchar-subscripts] 131 | while(stop.empty()==false && pr[ex[i]]<=pr[stop.back()]) | ~~~~^ main.cpp:131:65: warning: array subscript has type 'char' [-Wchar-subscripts] 131 | while(stop.empty()==false && pr[ex[i]]<=pr[stop.back()]) | ~~~~~~~~~^~ main.cpp:148:38: warning: array subscript has type 'char' [-Wchar-subscripts] 148 | stnr.push_back(v[mpf[ex[i]]]); | ~~~~^