Compilare: main.c: In function 'main': main.c:39:3: warning: 'sf' may be used uninitialized [-Wmaybe-uninitialized] 39 | fprintf(fout, "%d %d %d\n", in + 1, sf + 1, max); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:5:29: note: 'sf' was declared here 5 | int n, k, i, a, b, c, in, sf, max; | ^~ main.c:39:3: warning: 'in' may be used uninitialized [-Wmaybe-uninitialized] 39 | fprintf(fout, "%d %d %d\n", in + 1, sf + 1, max); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:5:25: note: 'in' was declared here 5 | int n, k, i, a, b, c, in, sf, max; | ^~