Compilare: main.cpp: In function 'void read()': main.cpp:19:38: 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:20:86: 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:21:49: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] for(i=1; i<=m; ++i) scanf("%lld", &mp[1][i]); ^ main.cpp:22:49: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] for(i=2; i<=n; ++i) scanf("%lld", &mp[i][1]); ^ main.cpp: In function 'void write()': main.cpp:37:40: 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); ^