Compilare: main.cpp: In function 'int main()': main.cpp:50:31: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::map<int, long long int>::size_type {aka long unsigned int}' [-Wformat=] printf("%d\n", profit.size()); ^ main.cpp: In function 'char next_char()': main.cpp:16:31: 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, DIM, stdin); ^ main.cpp: In function 'int main()': main.cpp:39:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("pariuri.in", "r", stdin); ^ main.cpp:40:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("pariuri.out", "w", stdout); ^