Compilare: user.cpp: In function ‘int main()’: user.cpp:20:28: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] d[i&1][j]=mat[1-i&1][j]+mat[i&1][j]; ^ user.cpp:23:27: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] if(min>d[1-i&1][x]&&j!=x) ^ user.cpp:24:28: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] min=d[1-i&1][x]; ^ user.cpp:9:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d" ,&n,&m); ^ user.cpp:12:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d" ,&mat[i][j]); ^ user.cpp:18:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d" ,&mat[i&1][j]); ^