Compilare: main.cpp: In function 'int main()': main.cpp:44:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d %d",&n,&m); ^ main.cpp:49:37: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&a[i][j]); ^ main.cpp: In function 'void Gasire(int, int)': main.cpp:34:25: warning: 'min_j' may be used uninitialized in this function [-Wmaybe-uninitialized] b[min_i][min_j] = mini + b[xs][ys]; ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~ main.cpp:15:5: warning: 'min_i' may be used uninitialized in this function [-Wmaybe-uninitialized] if (xs == n) ^~