Submission #121245

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
121245	2019-06-26 09:06:16	Plurm	Flood (IOI07_flood)	C++11	26 / 100	183 ms	12520 KiB

flood

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#include <bits/stdc++.h>
#define get(a,b) (ev[g[a][b]].first ^ ev[g[a][b]].second ^ a)
using namespace std;
int x[100005];
int y[100005];
int g[100005][4]; // U, L, D, R
class Compare{
public:
    bool operator()(int x, int y){
        return ::x[x] < ::x[y];
    }
};
int prior[4][4] = {
        {1, 0, 3, 2}, // U
        {2, 1, 0, 3}, // L
        {3, 2, 1, 0}, // D
        {0, 3, 2, 1}
};
int inv[4] = {2, 3, 0, 1};
bool deleted[200005];
vector<pair<int,int> > ev;
void deleteEdge(int idx){
    int u = ev[idx].first;
    int v = ev[idx].second;
    for(int i = 0; i < 4; i++){
        int j = inv[i];
        if(get(u,i) == v && get(v,j) == u){
            g[u][i] = -1;
            g[v][j] = -1;
        }
 
 
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Compilation message (stderr)

flood.cpp: In function 'int main()':
flood.cpp:86:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int i = 0; i < edge.size(); i++){
                        ~~^~~~~~~~~~~~~
flood.cpp:92:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int i = 0; i < tour.size(); i++){
                        ~~^~~~~~~~~~~~~
flood.cpp:104:29: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<int>::size_type {aka long unsigned int}' [-Wformat=]
     printf("%d\n",ans.size());
                   ~~~~~~~~~~^
flood.cpp:105:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i < ans.size(); i++){
                    ~~^~~~~~~~~~~~
flood.cpp:36:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
     ~~~~~^~~~~~~~~
flood.cpp:39:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d",x+i,y+i);
         ~~~~~^~~~~~~~~~~~~~~~
flood.cpp:45:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&w);
     ~~~~~^~~~~~~~~
flood.cpp:48:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d",&a,&b);
         ~~~~~^~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 0 / 10
• Subtask 3: 10 / 10
• Subtask 4: 0 / 3
• Subtask 5: 0 / 10
• Subtask 6: 3 / 3
• Subtask 7: 3 / 3
• Subtask 8: 0 / 3
• Subtask 9: 0 / 3
• Subtask 10: 0 / 9
• Subtask 11: 0 / 9
• Subtask 12: 0 / 9
• Subtask 13: 0 / 9
• Subtask 14: 0 / 9