Compilare: main.cpp: In function 'void Solve()': main.cpp:191:17: warning: unused variable 'l' [-Wunused-variable] int l = (i - 1) * DIM + 1; ^ main.cpp: In function 'void Read()': main.cpp:127:42: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("verkhoyansk.in", "r", stdin); ^ main.cpp:128:44: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("verkhoyansk.out", "w", stdout); ^ main.cpp: In function 'char C()': main.cpp:85:37: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, BSIZE, stdin); ^