Compilare: main.cpp: In function 'int read()': main.cpp:16:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int afisare()': main.cpp:23:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int read()': main.cpp:13:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &N, &G); ^ main.cpp:15:37: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &W[i], &P[i]); ^ main.cpp: In function 'int main()': main.cpp:27:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("rucsac.in", "r", stdin); ^ main.cpp:28:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("rucsac.out", "w", stdout); ^