Compilare: user.cpp: In function ‘int main()’: user.cpp:46:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<ind[nod].size()&&m[ind[nod][i]]) ^ user.cpp:48:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i==ind[nod].size()){ ^ user.cpp:58:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(!a[sol[i]][sol[i+1]].v.empty()){ ^ user.cpp:58:35: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(!a[sol[i]][sol[i+1]].v.empty()){ ^ user.cpp:59:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] sz=a[sol[i]][sol[i+1]].v.size(); ^ user.cpp:59:38: warning: array subscript has type ‘char’ [-Wchar-subscripts] sz=a[sol[i]][sol[i+1]].v.size(); ^ user.cpp:60:41: warning: array subscript has type ‘char’ [-Wchar-subscripts] printf("%d 0\n",a[sol[i]][sol[i+1]].v[sz-1]); ^ user.cpp:60:51: warning: array subscript has type ‘char’ [-Wchar-subscripts] printf("%d 0\n",a[sol[i]][sol[i+1]].v[sz-1]); ^ user.cpp:61:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[sol[i]][sol[i+1]].v.pop_back(); ^ user.cpp:61:35: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[sol[i]][sol[i+1]].v.pop_back(); ^ user.cpp:63:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] sz=a[sol[i+1]][sol[i]].v.size(); ^ user.cpp:63:38: warning: array subscript has type ‘char’ [-Wchar-subscripts] sz=a[sol[i+1]][sol[i]].v.size(); ^ user.cpp:64:43: warning: array subscript has type ‘char’ [-Wchar-subscripts] printf("%d 1\n",a[sol[i+1]][sol[i]].v[sz-1]); ^ user.cpp:64:51: warning: array subscript has type ‘char’ [-Wchar-subscripts] printf("%d 1\n",a[sol[i+1]][sol[i]].v[sz-1]); ^ user.cpp:65:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[sol[i+1]][sol[i]].v.pop_back(); ^ user.cpp:65:35: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[sol[i+1]][sol[i]].v.pop_back(); ^ user.cpp:14:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]