Compilare: main.cpp: In function 'int main()': main.cpp:22:19: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'short int*' [-Wformat=] scanf("%d", &n); ^ main.cpp:25:37: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'short int*' [-Wformat=] scanf("%d", &mat[i][j].h); ^ main.cpp:26:46: warning: narrowing conversion of 'i' from 'int' to 'short int' inside { } [-Wnarrowing] sir[(i-1)*n+j]={i, j, mat[i][j].h}; ^ main.cpp:27:49: warning: narrowing conversion of 'i' from 'int' to 'short int' inside { } [-Wnarrowing] vec[mat[i][j].h].push_back({i, j, 0}); ^ main.cpp:18:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] { freopen("alpin.in", "r",stdin); ^ main.cpp:19:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("alpin.out", "w",stdout); ^ main.cpp:22:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ main.cpp:25:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &mat[i][j].h); ^