Compilare: main.cpp: In function 'int main()': main.cpp:23:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<cop.size()-1;i++) { ~^~~~~~~~~~~~~ main.cpp:33:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<=cop.size()-1;i++) { ~^~~~~~~~~~~~~~ main.cpp:39:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i!=0 && i!=cop.size()-1) { ~^~~~~~~~~~~~~~ main.cpp:44:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i==cop.size()-1) { ~^~~~~~~~~~~~~~ main.cpp:32:18: warning: unused variable 'da' [-Wunused-variable] int nr=0,da,i; ^~ main.cpp:57:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<v.size();i++) { ~^~~~~~~~~ main.cpp:58:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int k=i;k<v.size();k++) { ~^~~~~~~~~ main.cpp:76:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ((maxi-mini+1)==cop.size()) { ~~~~~~~~~~~~~^~~~~~~~~~~~ main.cpp:77:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (cop.size()>da){ ~~~~~~~~~~^~~ main.cpp:81:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (cop.size()==da){ ~~~~~~~~~~^~~~ main.cpp:88:27: warning: 'nr' may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<da<<endl<<nr; ^ main.cpp:55:18: warning: 'maxi' may be used uninitialized in this function [-Wmaybe-uninitialized] int mini,maxi,da=1,nr; ^~~~ main.cpp:55:13: warning: 'mini' may be used uninitialized in this function [-Wmaybe-uninitialized] int mini,maxi,da=1,nr; ^~~~