Compilare: In file included from user.cpp:3:0: user.cpp: In function ‘int main()’: user.cpp:45:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] assert(strlen(asta[i]) - 1 == M); ^ user.cpp:41:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d %d\n", &N, &M); ^ user.cpp:44:32: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(asta[i], 1, M + 1, f); ^ user.cpp:65:27: warning: ‘min’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(f, "%d\n", z[min] / N); ^