Compilare: user.cpp: In function ‘void SolveTestCase()’: user.cpp:105:24: warning: unused variable ‘Z’ [-Wunused-variable] int N, M, Q, X, Y, Z, left, right, middle; scanf( "%d %d %d", &N, &M, &Q ); ^ user.cpp:105:79: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] int N, M, Q, X, Y, Z, left, right, middle; scanf( "%d %d %d", &N, &M, &Q ); ^ user.cpp:110:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf( "%d %d", &X, &Y ); ^ user.cpp:126:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf( "%d %d", &X, &Y ); ^ user.cpp: In function ‘int main(int, const char**)’: user.cpp:154:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( "reborn.in" , "r", stdin ); ^ user.cpp:155:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( "reborn.out", "w", stdout ); ^