Compilare: main.cpp: In function 'int main()': main.cpp:131:19: warning: unused variable 'upd' [-Wunused-variable] int cnt = 0 , upd = 0; ^~~ main.cpp:124:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%lld%lld",&n,&q); ^ main.cpp:126:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%lld",&v[i]); ^ main.cpp:133:47: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%lld%lld%lld",&tip,&a,&b); ^ main.cpp:159:35: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%lld",&k); ^