Compilare: main.cpp: In function 'int main()': main.cpp:43:35: warning: format '%d' expects argument of type 'int*', but argument 4 has type 'long long int*' [-Wformat=] scanf("%d%d%d", &x, &y, &c); ^ main.cpp:44:32: warning: narrowing conversion of 'c' from 'long long int' to 'int' inside { } [-Wnarrowing] vec[x].push_back({y, c}); ^ main.cpp:45:32: warning: narrowing conversion of 'c' from 'long long int' to 'int' inside { } [-Wnarrowing] vec[y].push_back({x, c}); ^ main.cpp:37:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("posta2.in", "r", stdin); ^ main.cpp:38:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("posta2.out", "w", stdout); ^ main.cpp:39:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ main.cpp:43:36: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &x, &y, &c); ^ main.cpp:48:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t[i]); ^ main.cpp:52:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &x); ^