Compilare: main.cpp: In function 'int main()': main.cpp:31:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; v.size() < n; ++i) { ~~~~~~~~~^~~ main.cpp:10:22: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &t); ^ main.cpp:17:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d", &n, &k); ^