Compilare: main.cpp: In function 'int main()': main.cpp:27:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (dreapta < resturi[i].size() && resturi[i][stanga] <= resturi[i][dreapta]) { ~~~~~~~~^~~~~~~~~~~~~~~~~~~ main.cpp:7:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("divk.in", "r", stdin); ^ main.cpp:8:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("divk.out", "w", stdout); ^ main.cpp:11:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d", &n, &k, &a, &b); ^ main.cpp:14:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &x); ^