Compilare: user.cpp: In function ‘int main()’: user.cpp:13:27: warning: variable ‘nr’ set but not used [-Wunused-but-set-variable] int n,m,i,j,ic,sf,l,c,nr,min=100000,minx,miny,linr,colr,colj,linj; ^ user.cpp:11:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("rj.in","r",stdin); ^ user.cpp:12:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("rj.out","w",stdout); ^ user.cpp:31:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:32:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%c",&C); ^ user.cpp:37:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%c",&C); ^ user.cpp:56:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%c",&C); ^ user.cpp:78:23: warning: ‘linj’ may be used uninitialized in this function [-Wmaybe-uninitialized] coada[ic].lin=linj; ^ user.cpp:79:23: warning: ‘colj’ may be used uninitialized in this function [-Wmaybe-uninitialized] coada[ic].col=colj; ^ user.cpp:60:23: warning: ‘colr’ may be used uninitialized in this function [-Wmaybe-uninitialized] coada[ic].col=colr; ^ user.cpp:59:23: warning: ‘linr’ may be used uninitialized in this function [-Wmaybe-uninitialized] coada[ic].lin=linr; ^