Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:18:11: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 18 | if(pi < req[x]){ | ~~~^~~~~~~~ main.cpp: In function 'void c1()': main.cpp:64:11: warning: 'y' may be used uninitialized [-Wmaybe-uninitialized] 64 | fout<<y; | ^ main.cpp:52:21: note: 'y' was declared here 52 | int sum = 0, x, y, maxi = -9999; | ^