Compilare: main.cpp: In function 'void update()': main.cpp:49:35: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld",&l[i]),--l[i]; ^ main.cpp:50:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld",&k); ^ main.cpp: In function 'void display()': main.cpp:92:35: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld",&l[i]),--l[i]; ^ main.cpp: In function 'void cit(long long int&)': main.cpp:99:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld",&n,&q); ^ main.cpp:102:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld",&v[i]); ^ main.cpp: In function 'void play()': main.cpp:107:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&cas); ^ main.cpp: In function 'int main()': main.cpp:116:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("euclid1.in","r",stdin); ^ main.cpp:117:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("euclid1.out","w",stdout); ^