Submission #296765

#	Time	Username	Problem	Language	Result	Execution time	Memory
296765		DanerZein	Wiring (IOI17_wiring)	C++14	20 / 100	84 ms	4344 KiB

wiring

#include "wiring.h"
#include <bits/stdc++.h>
#define MAX 100000000
using namespace std;
long long min_total_length(std::vector<int> r, std::vector<int> b) {
    long long s=0,le,ri;
    le=0,ri;
    ri=b.size()-1;
    if(r[r.size()-1]<b[0]){
    while(true){
        s+=abs(r[le]-b[ri]);
        le++;
        ri--;
        if(le==r.size()){
            if(ri==-1)
            break;
            else{
                le--;
                while(true){
                    s+=abs(r[le]-b[ri]);
                    ri--;
                    if(ri==-1){
                        break;
                    }
                }
                break;
            }
        }
        if(ri==-1){
            if(le==r.size()){
                break;
            }
            else{
                ri++;
                while(true){
                    s+=abs(r[le]-b[ri]);
                    le++;
                    if(le==r.size()){
                        break;
                    }
                }
                break;
            }
        }
    }
    /*if(le!=ri){
        for(int i=le;i<=ri;i++){
            s+=abs(r[le-1]-b[i]);
        }
    }*/
	return s;
    }
    else{
        int dp[210][210];
        memset(dp,MAX,sizeof dp);
        dp[0][0]=abs(r[0]-b[0]);
        int mi=MAX;
        for(int i=0;i<r.size();i++){
            for(int j=0;j<b.size();j++){
                mi=MAX;
                if(i==0 and j==0){
                    continue;
                }
                else{
                    if(i==0){
                        mi=min(mi,dp[i][j-1]);
                    }
                    else{
                        if(j==0){
                            mi=min(mi,dp[i-1][j]);
                        }
                        else{
                            mi=min(mi,dp[i-1][j-1]);
                            mi=min(mi,dp[i-1][j]);
                            mi=min(mi,dp[i][j-1]);
                        }
                    }
                    dp[i][j]=mi+abs(r[i]-b[j]);
                }
               //cout<<"i: "<<i<<" j: "<<j<<" mi: "<<mi<<" dp: "<<dp[i][j]<<endl;
            }
        }
       /* for(int i=0;i<r.size();i++){
            for(int j=0;j<b.size();j++){
                cout<<dp[i][j]<<" ";
            }
            cout<<endl;
        }*/
        return dp[r.size()-1][b.size()-1];
    }
}
/*
int main() {
	int n, m;
	assert(2 == scanf("%d %d", &n, &m));
 
	vector<int> r(n), b(m);
	for(int i = 0; i < n; i++)
		assert(1 == scanf("%d", &r[i]));
	for(int i = 0; i < m; i++)
		assert(1 == scanf("%d", &b[i]));
 
	long long res = min_total_length(r, b);
	printf("%lld\n", res);
 
	return 0;
}
*/

Compilation message (stderr)

wiring.cpp: In function 'long long int min_total_length(std::vector<int>, std::vector<int>)':
wiring.cpp:7:12: warning: right operand of comma operator has no effect [-Wunused-value]
    7 |     le=0,ri;
      |            ^
wiring.cpp:14:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |         if(le==r.size()){
      |            ~~^~~~~~~~~~
wiring.cpp:30:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |             if(le==r.size()){
      |                ~~^~~~~~~~~~
wiring.cpp:38:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |                     if(le==r.size()){
      |                        ~~^~~~~~~~~~
wiring.cpp:58:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |         for(int i=0;i<r.size();i++){
      |                     ~^~~~~~~~~
wiring.cpp:59:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |             for(int j=0;j<b.size();j++){
      |                         ~^~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 13 / 13
• Subtask 3: 0 / 10
• Subtask 4: 0 / 25
• Subtask 5: 0 / 45