Compilare: user.cpp: In function ‘int main()’: user.cpp:57:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<g[t.node].size(); i++) ^ user.cpp:76:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<g[t.node].size(); i++) ^ user.cpp:94:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<g[t.node].size(); i++) ^ user.cpp:34:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("trilant.in","r",stdin); ^ user.cpp:35:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("trilant.out","w",stdout); ^ user.cpp:39:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:40:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&A,&B,&C); ^ user.cpp:43:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&x,&y,&c); ^ user.cpp:119:27: warning: ‘rt’ may be used uninitialized in this function [-Wmaybe-uninitialized] printf("%d ",lantB[rt]); ^