Compilare: main.cpp: In function 'int main()': main.cpp:70:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("bool.in", "r", stdin); ^ main.cpp:71:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("bool.out", "w", stdout); ^ main.cpp:121:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf ("%d ", &q); ^ main.cpp:125:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf ("%c", &ch); ^ main.cpp:109:23: warning: 'cuv' may be used uninitialized in this function [-Wmaybe-uninitialized] i += cuv; ~~^~~~~~