Compilare: main.cpp: In function 'int main()': main.cpp:98:13: warning: unused variable 'l' [-Wunused-variable] int i , l , r, cnt , el , sol = 0; ^ main.cpp:98:17: warning: unused variable 'r' [-Wunused-variable] int i , l , r, cnt , el , sol = 0; ^ main.cpp:98:20: warning: unused variable 'cnt' [-Wunused-variable] int i , l , r, cnt , el , sol = 0; ^~~ main.cpp:98:26: warning: unused variable 'el' [-Wunused-variable] int i , l , r, cnt , el , sol = 0; ^~ main.cpp:98:31: warning: unused variable 'sol' [-Wunused-variable] int i , l , r, cnt , el , sol = 0; ^~~ main.cpp:99:25: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&n); ^ main.cpp:101:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&v[i]); ^