Compilare: main.cpp: In function 'int main()': main.cpp:43:11: warning: variable 'A' set but not used [-Wunused-but-set-variable] Point A = triangle[i].A; ^ main.cpp:44:11: warning: variable 'B' set but not used [-Wunused-but-set-variable] Point B = triangle[i].B; ^ main.cpp:45:11: warning: variable 'C' set but not used [-Wunused-but-set-variable] Point C = triangle[i].C; ^ main.cpp:32:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("triunghi2.in", "r", stdin); ^ main.cpp:33:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("triunghi2.out", "w", stdout); ^ main.cpp:35:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ main.cpp:37:134: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d%d%d", &triangle[i].A.x, &triangle[i].A.y, &triangle[i].B.x, &triangle[i].B.y, &triangle[i].C.x, &triangle[i].C.y); ^ main.cpp:39:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &I.x, &I.y); ^