Compilare: main.cpp: In function 'void readS(int)': main.cpp:23:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &s[t].v[i]); ^ main.cpp: In function 'int main()': main.cpp:59:41: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &s[0].len, &s[1].len); ^