제출 #16322

#제출 시각아이디문제언어결과실행 시간메모리
16322comet이상적인 도시 (IOI12_city)C++98
컴파일 에러
0 ms0 KiB
#include <stdio.h> #include <stdlib.h> #include <assert.h> #include <algorithm> #include <vector> #include <map> using namespace std; typedef long long ll; typedef pair<int,int> pp; typedef vector<int> vec; typedef vector<vec> mat; #define pb push_back #define MOD 1000000000 struct pt{ int x,y,v; pt(){} pt(int x_,int y_):x(x_),y(y_){} bool operator<(const pt& r)const{ return x!=r.x?x<r.x:y<r.y; } }s[100000]; mat path; int n; int cnt[100000]; ll dfs(int v,int p,ll &ans){ ll ret=0; for(int i=0;i<path[v].size();i++){ int u=path[v][i]; if(u==p)continue; ret+=dfs(u,v,ans); } ret+=cnt[v]; ans+=(n-ret)*ret; ans%=MOD; return ret; } int f(int N, int *X, int *Y) { n=N; for(int i=0;i<N;i++)s[i]=pt(X[i],Y[i]); sort(s,s+N); int sz=0; for(int i=0;i<N;i++){ int p=i; while(s[i].x==s[i+1].x)i++; int v=p; //printf("%d %d\n",p,i); while(v<=i){ while(v<i&&s[v].y+1==s[v+1].y){ s[v].v=sz; v++; } s[v].v=sz; cnt[sz++]=s[v].y-s[p].y+1; p=++v; } } //puts("Umm..."); path.clear(); path.assign(sz,vec()); for(int i=0;i<N;i++){ auto it=lower_bound(s,s+N,pt(s[i].x-1,s[i].y)); if(it->x==s[i].x-1&&it->y==s[i].y)path[s[i].v].pb(it->v); it=lower_bound(s,s+N,pt(s[i].x+1,s[i].y)); if(it->x==s[i].x+1&&it->y==s[i].y)path[s[i].v].pb(it->v); } for(int i=0;i<sz;i++){ //printf("%d : ",i); sort(path[i].begin(),path[i].end()); path[i].erase(unique(path[i].begin(),path[i].end()),path[i].end()); //for(int j=0;j<path[i].size();j++)printf("%d ",path[i][j]); //puts(""); } //for(int i=0;i<sz;i++)printf("%d ",cnt[i]); //puts(""); ll ret=0; dfs(0,0,ret); return (int)ret; } int DistanceSum(int N, int *X, int *Y){ return (f(N,X,Y)+f(N,Y,X))%MOD; }

컴파일 시 표준 에러 (stderr) 메시지

city.cpp: In function ‘ll dfs(int, int, ll&)’:
city.cpp:30:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<path[v].size();i++){
               ^
city.cpp: In function ‘int f(int, int*, int*)’:
city.cpp:67:3: warning: ‘auto’ changes meaning in C++11; please remove it [-Wc++0x-compat]
   auto it=lower_bound(s,s+N,pt(s[i].x-1,s[i].y));
   ^
city.cpp:67:8: error: ‘it’ does not name a type
   auto it=lower_bound(s,s+N,pt(s[i].x-1,s[i].y));
        ^
city.cpp:68:6: error: ‘it’ was not declared in this scope
   if(it->x==s[i].x-1&&it->y==s[i].y)path[s[i].v].pb(it->v);
      ^
city.cpp:69:3: error: ‘it’ was not declared in this scope
   it=lower_bound(s,s+N,pt(s[i].x+1,s[i].y));
   ^