Compilare: main.cpp: In function 'void prt_deques()': main.cpp:40:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<values.size(); i++) ~^~~~~~~~~~~~~~ main.cpp:46:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<sums.size(); i++) ~^~~~~~~~~~~~ main.cpp: In function 'long long int get_min()': main.cpp:85:12: warning: 'to_return' may be used uninitialized in this function [-Wmaybe-uninitialized] return to_return; ^~~~~~~~~