Compilare: user.cpp: In function ‘int main()’: user.cpp:151:29: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long long int’ [-Wformat=] fprintf(fo, "%d", tr/b); ^ user.cpp:102:41: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi, "%d%d%lld", &cer, &n, &k.s); ^ user.cpp:105:157: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi, "%lld%lld%lld%lld%lld%lld", &island[i].v1.x.s, &island[i].v1.y.s, &island[i].v2.x.s, &island[i].v2.y.s, &island[i].v3.x.s, &island[i].v3.y.s); ^