Compilare: user.cpp: In function ‘int main()’: user.cpp:89:13: warning: unused variable ‘startTime’ [-Wunused-variable] clock_t startTime = clock(); ^ user.cpp:96:13: warning: unused variable ‘finishTime’ [-Wunused-variable] clock_t finishTime = clock(); ^ user.cpp: In function ‘void readData()’: user.cpp:38:46: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld%lld%lld", &a, &b, &P, &M); ^ user.cpp:41:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%lld", &pos, &sum); ^