Compilare: main.cpp: In function 'void Update(int)': main.cpp:81:9: warning: unused variable 'prv' [-Wunused-variable] int prv = 0; ^~~ main.cpp: In function 'int main()': main.cpp:91:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &t); ^ main.cpp:94:40: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &b[i].c, &b[i].v); ^