Compilare: main.cpp: In function 'int main()': main.cpp:110:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("parb2.in", "r", stdin); ^ main.cpp:111:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("parb2.out", "w", stdout); ^ main.cpp:113:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d", &n, &q); ^ main.cpp:115:37: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d %c\n", &x, &y, &ch); ^ main.cpp:125:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d", &x, &y); ^ main.cpp: In function 'bool lcp(int, int, int)': main.cpp:81:1: warning: control reaches end of non-void function [-Wreturn-type] } ^