Compilare: main.cpp: In function 'void move_punct(punct&, punct&, punct&)': main.cpp:88:10: warning: variable 'xp' set but not used [-Wunused-but-set-variable] double xp, yp; ^~ main.cpp: In function 'int main()': main.cpp:136:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("expand.in", "r", stdin); ^ main.cpp:137:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("expand.out", "w", stdout); ^ main.cpp:139:33: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %lf", &t, &n, &r); ^ main.cpp:141:39: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lf %lf", &p[i].x, &p[i].y); ^