Compilare: user.cpp: In function ‘void read_input()’: user.cpp:61:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &type, &N, &K); ^ user.cpp:64:64: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &triangle[i][j].x, &triangle[i][j].y); ^