Compilare: user.cpp: In function ‘int solve5(int, int)’: user.cpp:137:6: warning: ‘t’ may be used uninitialized in this function [-Wmaybe-uninitialized] r+=a+t; ^ user.cpp: In function ‘int main(int, char**)’: user.cpp:137:6: warning: ‘t’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:129:12: note: ‘t’ was declared here int r = 0,t; ^