Compilare: main.cpp: In function 'int main()': main.cpp:106:19: warning: variable 'it' set but not used [-Wunused-but-set-variable] for (auto it : nr[i]) ^~ main.cpp:103:9: warning: unused variable 'lastp' [-Wunused-variable] int lastp = 1; ^~~~~ main.cpp:63:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("cuvinte6.in", "r", stdin); ^ main.cpp:64:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("cuvinte6.out", "w", stdout); ^