Compilare: main.cpp: In function 'int main()': main.cpp:40:20: warning: format '%ld' expects argument of type 'long int*', but argument 2 has type 'll* {aka long long int*}' [-Wformat=] scanf("%ld", &b); ^ main.cpp:53:63: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'long long int' [-Wformat=] for(auto it : Sol) printf("%ld %ld\n", it.first, it.second); ^ main.cpp:53:63: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'long long int' [-Wformat=] main.cpp:38:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("armonica.in", "r", stdin); ^ main.cpp:39:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("armonica.out", "w", stdout); ^ main.cpp:40:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%ld", &b); ^