Compilare: main.cpp: In function 'long long int sumaptx(long long int)': main.cpp:25:27: warning: unused variable 'j' [-Wunused-variable] register long long i, j ; ^ main.cpp: In function 'int main()': main.cpp:50:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("livada3.in","r",stdin) ; ^ main.cpp:51:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("livada3.out","w",stdout) ; ^ main.cpp:52:95: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld %lld %lld %lld %lld %lld %lld %lld %lld", &n, &m, &c, &r, &x, &y, &z, &w, &u) ; ^ main.cpp:56:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &v[1][i]) ; ^ main.cpp:58:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &v[i][1]) ; ^