Compilare: user.cpp: In function ‘int main()’: user.cpp:25:7: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (j == 1) ^ user.cpp:12:6: warning: unused variable ‘cur’ [-Wunused-variable] int cur=0; ^~~ user.cpp:13:6: warning: unused variable ‘sum’ [-Wunused-variable] int sum; ^~~ user.cpp:97:5: warning: ‘v[3]’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (v[1] > v[2]) ^~ user.cpp:92:4: warning: ‘v[2]’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (v[0] > v[1]) ^~ user.cpp:87:16: warning: ‘v[1]’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (abs(v[1] - v[0]) <= d) ~~~~~^~~~~~ user.cpp:87:16: warning: ‘v[0]’ may be used uninitialized in this function [-Wmaybe-uninitialized]