Compilare: main.cpp: In function 'int add(int, int)': main.cpp:23:25: warning: control reaches end of non-void function [-Wreturn-type] dp[nod]=sol2,nex[nod]=2;} ^ main.cpp: In function 'int main()': main.cpp:25:28: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("rps.in","r",stdin); ^ main.cpp:26:30: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("rps.out","w",stdout); ^ main.cpp:28:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d\n",&n,&k,&w,&d); ^ main.cpp:34:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s",ch+1); ^