Compilare: main.cpp: In function 'void rd()': main.cpp:23:22: warning: result of '(2 << 31)' requires 34 bits to represent, but 'int' only has 32 bits [-Wshift-overflow=] dist[i] = (2 << 31) - 1; ~~^~~~~ main.cpp: In function 'int main()': main.cpp:57:26: warning: result of '(2 << 31)' requires 34 bits to represent, but 'int' only has 32 bits [-Wshift-overflow=] if(dist[i] == (2 << 31) - 1){ ~~^~~~~ main.cpp:57:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(dist[i] == (2 << 31) - 1){ ~~~~~~~~^~~~~~~~~~~~~~~~