Compilare: main.cpp: In function 'int main()': main.cpp:31:49: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] if(((a[i][j]>>3)&1)==1 && (a[i][j]&1==1)) ~^~~ main.cpp:50:55: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] if(((a[lin][col]>>1)&1==0) && ((a[v[inc].l][v[inc].c]>>3)&1==0)) ~^~~ main.cpp:50:92: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] if(((a[lin][col]>>1)&1==0) && ((a[v[inc].l][v[inc].c]>>3)&1==0)) ~^~~ main.cpp:67:50: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] if((a[lin][col]&1==0) && ((a[v[inc].l][v[inc].c]>>2)&1==0)) ~^~~ main.cpp:67:87: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] if((a[lin][col]&1==0) && ((a[v[inc].l][v[inc].c]>>2)&1==0)) ~^~~ main.cpp:84:55: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] if(((a[lin][col]>>3)&1==0) && ((a[v[inc].l][v[inc].c]>>1)&1==0)) ~^~~ main.cpp:84:92: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] if(((a[lin][col]>>3)&1==0) && ((a[v[inc].l][v[inc].c]>>1)&1==0)) ~^~~ main.cpp:101:55: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] if(((a[lin][col]>>2)&1==0) && (a[v[inc].l][v[inc].c]&1==0)) ~^~~ main.cpp:101:87: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] if(((a[lin][col]>>2)&1==0) && (a[v[inc].l][v[inc].c]&1==0)) ~^~~ main.cpp:18:11: warning: unused variable 'm' [-Wunused-variable] int n,m,cpromeo,lp,cp,lin,col,nrcamere=0,ctmax,linie,coloana,i,j,cer,inc,sf,max=0,x,pp=1023; ^ main.cpp:18:13: warning: unused variable 'cpromeo' [-Wunused-variable] int n,m,cpromeo,lp,cp,lin,col,nrcamere=0,ctmax,linie,coloana,i,j,cer,inc,sf,max=0,x,pp=1023; ^~~~~~~ main.cpp:18:46: warning: variable 'ctmax' set but not used [-Wunused-but-set-variable] int n,m,cpromeo,lp,cp,lin,col,nrcamere=0,ctmax,linie,coloana,i,j,cer,inc,sf,max=0,x,pp=1023; ^~~~~ main.cpp:16:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("castel3.in","r",stdin); ^ main.cpp:17:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("castel3.out","w",stdout); ^ main.cpp:19:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d\n",&cer,&n); ^ main.cpp:24:33: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&a[i][j]); ^