Compilare: main.c: In function 'main': main.c:108:5: warning: 'j2' may be used uninitialized in this function [-Wmaybe-uninitialized] 108 | fprintf(fout,"%d %d %d %d\n",i1+1,j1+1,i2+1,j2+1); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:108:5: warning: 'i2' may be used uninitialized in this function [-Wmaybe-uninitialized] main.c:108:5: warning: 'j1' may be used uninitialized in this function [-Wmaybe-uninitialized] main.c:108:5: warning: 'i1' may be used uninitialized in this function [-Wmaybe-uninitialized] main.c:95:9: warning: 'xmax' may be used uninitialized in this function [-Wmaybe-uninitialized] 95 | if(m[i][j] == xmax){ | ^