Compilare: main.cpp: In function 'void solve1()': main.cpp:31:9: warning: unused variable 'sf' [-Wunused-variable] int sf = -1, ci; ^~ main.cpp:31:18: warning: 'ci' may be used uninitialized in this function [-Wmaybe-uninitialized] int sf = -1, ci; ^~ main.cpp:66:10: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized] ans+=x; ^ main.cpp: In function 'void solve2()': main.cpp:109:10: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized] ans+=x; ^ main.cpp:104:22: warning: 'ci' may be used uninitialized in this function [-Wmaybe-uninitialized] for( int i =0 ;i < ci;i++) ~~^~~~