Compilare: user.cpp: In function ‘void propagateLazy(int, int, int)’: user.cpp:86:9: warning: unused variable ‘midIndex’ [-Wunused-variable] int midIndex = ( leftIndex + rightIndex ) / 2 ; ^ user.cpp: In function ‘int main()’: user.cpp:156:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("luffpar.in","r",stdin); ^ user.cpp:157:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("luffpar.out","w",stdout); ^ user.cpp:159:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n",&noPar); ^ user.cpp:162:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%c",&allPar[ i ] ); ^ user.cpp:168:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&noQuery ); ^ user.cpp:172:53: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&type ,&idxLeft , &idxRight ); ^