Compilare: user.cpp: In function ‘int main()’: user.cpp:66:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=1;j<tip[i].size();j++) ^ user.cpp:75:21: warning: ‘pr’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(tip[i][pr].tip>tip[i][sc].tip) ^ user.cpp:75:36: warning: ‘sc’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(tip[i][pr].tip>tip[i][sc].tip) ^