Compilare: main.cpp: In function 'int main()': main.cpp:32:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (poz = 0 ; poz < cur.size() && cur[poz] < point[j].second ; ++ poz) ; ~~~~^~~~~~~~~~~~ main.cpp:37:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (cur.size() < K) { ~~~~~~~~~~~^~~ main.cpp:40:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (k = l = 0 ; k < cur.size() ; ++ k) { ~~^~~~~~~~~~~~ main.cpp:15:37: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d", &n, &K) ; ^ main.cpp:18:45: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d", &x, &y) ; ^