Compilare: user.cpp: In function ‘void get_sol()’: user.cpp:49:35: warning: format ‘%c’ expects argument of type ‘int’, but argument 2 has type ‘long long unsigned int’ [-Wformat=] printf("%c", var + 'A'); ^ user.cpp: In function ‘void read()’: user.cpp:11:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("expresii2.in", "r", stdin); ^ user.cpp:12:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %lld", &n, &K, &p); ^ user.cpp: In function ‘void write()’: user.cpp:70:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("expresii2.out", "w", stdout); ^