Eroare de compilare: main.c: In function 'main': main.c:8:2: error: 'sol' undeclared (first use in this function) sol; ^~~ main.c:8:2: note: each undeclared identifier is reported only once for each function it appears in main.c:11:2: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &a); ^~~~~~~~~~~~~~~~~~~ main.c:12:2: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &b); ^~~~~~~~~~~~~~~~~~~ Non zero exit status: 1