Compilare: main.cpp: In function 'int main()': main.cpp:91:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (st<T[x].size() && T[x][st]<=t) ~~^~~~~~~~~~~~ main.cpp:48:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("avioane2.in", "r", stdin); ^ main.cpp:49:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("avioane2.out", "w", stdout); ^