Compilare: user.cpp: In function ‘int main()’: user.cpp:102:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d ", &n, &k); ^ user.cpp:135:19: warning: ‘dcol’ may be used uninitialized in this function [-Wmaybe-uninitialized] d=a[dlin][dcol]; ^ user.cpp:135:19: warning: ‘dlin’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:134:19: warning: ‘scol’ may be used uninitialized in this function [-Wmaybe-uninitialized] s=a[slin][scol]; ^ user.cpp:134:19: warning: ‘slin’ may be used uninitialized in this function [-Wmaybe-uninitialized]