Compilare: main.cpp: In function 'int main()': main.cpp:45:19: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(a[l+dirLin[i]][c+dirCol[i]] >= 0) ^ main.cpp:21:55: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d%d%d%d", &n,&m,&l1,&c1,&l2,&c2); ^ main.cpp:25:40: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &a[i][j]); ^