Compilare: user.cpp: In function ‘int main()’: user.cpp:78:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d%d\n", &n, &m ) ; ^ user.cpp:83:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%c", &val ) ; ^ user.cpp:105:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "\n" ) ; ^ user.cpp:124:20: warning: ‘yf’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (mat[1][xf][yf] > 0 ) ^ user.cpp:124:20: warning: ‘xf’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:108:23: warning: ‘y2’ may be used uninitialized in this function [-Wmaybe-uninitialized] lee (x2, y2, 0, 0 ) ; /// Pentru percy ^ user.cpp:108:23: warning: ‘x2’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:109:23: warning: ‘y1’ may be used uninitialized in this function [-Wmaybe-uninitialized] lee (x1, y1, 1, 1 ) ; ^ user.cpp:109:23: warning: ‘x1’ may be used uninitialized in this function [-Wmaybe-uninitialized]