Compilare: main.cpp: In function 'int main()': main.cpp:48:49: warning: unused variable 'v1' [-Wunused-variable] { long long nr1, nr2, v1, v2; ^~ main.cpp:48:53: warning: unused variable 'v2' [-Wunused-variable] { long long nr1, nr2, v1, v2; ^~ main.cpp:53:39: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=] printf("%d\n", sol); ^ main.cpp:13:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("sec.in", "r", stdin); ^ main.cpp:14:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("sec.out", "w", stdout); ^ main.cpp:16:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld", &t); scanf("%lld", &c); ^ main.cpp:16:41: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld", &t); scanf("%lld", &c); ^ main.cpp:20:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld", &n); ^ main.cpp:21:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld", &k); ^ main.cpp:23:65: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] for(int i=1; i<=n; i++) scanf("%lld", &v[i]); ^