Compilare: user.cpp: In function ‘int cauta(int, int)’: user.cpp:19:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(rez+pas<V[l].size()&&V[l][rez+pas].col<=c) ^ user.cpp: In function ‘int main()’: user.cpp:54:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(rez+pas<V[i].size()&&V[i][rez+pas].col<=j) ^ user.cpp:30:43: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d %d %d " ,&n,&m,&l,&c); ^ user.cpp:34:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%c " ,&a); ^ user.cpp:50:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d " ,&x); ^ user.cpp:62:43: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d %d %d " ,&n,&m,&l,&c); ^ user.cpp:66:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%c " ,&a); ^