Compilare: main.cpp: In function 'double Task3()': main.cpp:56:9: warning: unused variable 'nre' [-Wunused-variable] int nre = 0; ^~~ main.cpp: In function 'int main()': main.cpp:98:35: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &task, &n, &k); ^ main.cpp:102:56: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] &v[i].A[1].y, &v[i].A[2].x, &v[i].A[2].y); ^