Compilare: main.cpp: In function 'int main()': main.cpp:70:55: warning: 's1' may be used uninitialized in this function [-Wmaybe-uninitialized] secunde=(h*3600+m*60+s)-(h1*3600+m1*60+s1); ~~~~~~~~~~~~~~^~~~ main.cpp:72:36: warning: 'm1' may be used uninitialized in this function [-Wmaybe-uninitialized] cout<<h1<<" "<<m1<<" "<<s1<<"\n"; ^~~ main.cpp:72:27: warning: 'h1' may be used uninitialized in this function [-Wmaybe-uninitialized] cout<<h1<<" "<<m1<<" "<<s1<<"\n"; ^~~ main.cpp:41:56: warning: 's1' may be used uninitialized in this function [-Wmaybe-uninitialized] secunde+=(h*3600+m*60+s)-(h1*3600+m1*60+s1); ~~~~~~~~~~~~~~^~~~ main.cpp:41:53: warning: 'm1' may be used uninitialized in this function [-Wmaybe-uninitialized] secunde+=(h*3600+m*60+s)-(h1*3600+m1*60+s1); ~~^~~ main.cpp:41:45: warning: 'h1' may be used uninitialized in this function [-Wmaybe-uninitialized] secunde+=(h*3600+m*60+s)-(h1*3600+m1*60+s1); ~~^~~~~