Compilare: main.cpp: In function 'int main()': main.cpp:108:18: warning: unused variable 'ans' [-Wunused-variable] long long i, ans, testsNumber, queryNumber; ^~~ main.cpp:106:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("sir7.in", "r", stdin); ^ main.cpp:107:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("sir7.out", "w", stdout); ^ main.cpp: In function 'long long int solve()': main.cpp:98:5: warning: 'minNumber' may be used uninitialized in this function [-Wmaybe-uninitialized] if (checkNoMid(ansDif,minNumber)) { ^~ main.cpp:98:5: warning: 'ansDif' may be used uninitialized in this function [-Wmaybe-uninitialized]