Compilare: user.cpp: In function ‘int vest(int, int)’: user.cpp:46:9: warning: unused variable ‘vest’ [-Wunused-variable] int vest=a[i][j]%2; ^ user.cpp:47:2: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int check(int, int, int, int, int)’: user.cpp:76:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] {if(i!=1) ^ user.cpp:89:9: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(i!=n) ^ user.cpp:102:10: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(j!=1) ^ user.cpp:115:9: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(j!=m) ^ user.cpp:137:1: warning: control reaches end of non-void function [-Wreturn-type] } ^