Compilare: user.cpp: In function ‘void citesc()’: user.cpp:17:17: warning: unused variable ‘xx’ [-Wunused-variable] int caate=0,xx; ^ user.cpp: In function ‘void marc(int, int, int, int, int)’: user.cpp:64:34: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] for(int j=col+1;j<=c2&a[i][j]!=true;j++) ^ user.cpp: In function ‘int main()’: user.cpp:82:9: warning: variable ‘lin’ set but not used [-Wunused-but-set-variable] int lin,col; ^ user.cpp:82:13: warning: variable ‘col’ set but not used [-Wunused-but-set-variable] int lin,col; ^ user.cpp: In function ‘void citesc()’: user.cpp:16:12: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(s); ^ user.cpp:32:16: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(s); ^ user.cpp: In function ‘int main()’: user.cpp:78:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bemo.in","r",stdin); ^ user.cpp:79:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bemo.out","w",stdout); ^ /tmp/cc9GnF6G.o: In function `citesc()': user.cpp:(.text+0x27): warning: the `gets' function is dangerous and should not be used.