Compilare: user.cpp: In function ‘int main()’: user.cpp:73:22: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] if(b[i-1]==11&b[i]==11) ^ user.cpp:97:31: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] while(a[i]==0||a[i]==3&&i<=n) ^ user.cpp:148:22: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] if(b[i-1]==11&b[i]==11) ^ user.cpp:183:19: warning: statement has no effect [-Wunused-value] pr>>1; ^ user.cpp:9:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("minesweeper2.in","r",stdin); ^ user.cpp:10:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:13:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&a[i]); ^