Compilare: user.cpp: In function ‘int vest(int, int)’: user.cpp:45:9: warning: unused variable ‘vest’ [-Wunused-variable] int vest=a[i][j]%2; ^ user.cpp:46:2: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int check(int, int, int, int, int)’: user.cpp:75:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] {if(i!=1) ^ user.cpp:88:9: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(i!=n) ^ user.cpp:101:10: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(j!=1) ^ user.cpp:114:9: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(j!=m) ^ user.cpp:136:1: warning: control reaches end of non-void function [-Wreturn-type] } ^