Submission #228297

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
228297	2020-04-30T12:23:00 Z	urd05	timeismoney (balkan11_timeismoney)	C++14	100 / 100	1063 ms	892 KB

timeismoney

#include <bits/stdc++.h>
using namespace std;
 
#define int long long
 
int n,m;
 
struct Edge {
    int s,e,t,c;
};
 
Edge edge[10000];
int one,two;
 
bool comp(Edge a,Edge b) {
    return one*a.t+two*a.c<one*b.t+two*b.c;
}
 
int opt1=-1;
int opt2=-1;
long long ret1=1e6;
long long ret2=1e6;
 
int p[200];
 
int find(int a) {
    if (p[a]<0) {
        return a;
    }
    p[a]=find(p[a]);
    return p[a];
}
 
void merge(int a,int b) {
    a=find(a);
    b=find(b);
    if (a==b) {
        return;
    }
    p[b]=a;
}
 
void solve(int x1,int y1,int x2,int y2) {
    if (x1==x2&&y1==y2) {
        return;
    }
    one=y1-y2;
    two=x2-x1;
    int x=0;
    int y=0;
    sort(edge,edge+m,comp);
    memset(p,-1,sizeof(p));
    for(int i=0;i<m;i++) {
        if (find(edge[i].s)!=find(edge[i].e)) {
            x+=edge[i].t;
            y+=edge[i].c;
            merge(edge[i].s,edge[i].e);
        }
    }
    if ((long long)x*(long long)y<ret1*ret2) {
        ret1=x;
        ret2=y;
        opt1=y1-y2;
        opt2=x2-x1;
    }
	if (one*x+two*y==one*x1+two*y1) {
		return;
	}
    if ((x!=x2)||(y!=y2))
        solve(x1,y1,x,y);
    if (x!=x1||y!=y1)
        solve(x,y,x2,y2);
}
 
main(void) {
    scanf("%d %d\n",&n,&m);
    for(int i=0;i<m;i++) {
        scanf("%d %d %d %d\n",&edge[i].s,&edge[i].e,&edge[i].t,&edge[i].c);
    }
    one=300*n;
    two=1;
    int x1=0;
    int x2=0;
    int y1=0;
    int y2=0;
    sort(edge,edge+m,comp);
    memset(p,-1,sizeof(p));
    for(int i=0;i<m;i++) {
        if (find(edge[i].s)!=find(edge[i].e)) {
            x1+=edge[i].t;
            y1+=edge[i].c;
            merge(edge[i].s,edge[i].e);
        }
    }
    if (x1*(long long)y1<ret1*ret2) {
        ret1=x1;
        ret2=y1;
        opt1=1;
        opt2=0;
    }
    one=1;
    two=300*n;
    sort(edge,edge+m,comp);
    memset(p,-1,sizeof(p));
    for(int i=0;i<m;i++) {
        if (find(edge[i].s)!=find(edge[i].e)) {
            x2+=edge[i].t;
            y2+=edge[i].c;
            merge(edge[i].s,edge[i].e);
        }
    }
    if (x2*(long long)y2<ret1*ret2) {
        ret1=x2;
        ret2=y2;
        opt1=0;
        opt2=1;
    }
    solve(x1,y1,x2,y2);
    printf("%d %d\n",ret1,ret2);
    one=opt1;
    two=opt2;
    sort(edge,edge+m,comp);
    memset(p,-1,sizeof(p));
    for(int i=0;i<m;i++) {
        if (find(edge[i].s)!=find(edge[i].e)) {
            merge(edge[i].s,edge[i].e);
            printf("%d %d\n",edge[i].s,edge[i].e);
        }
    }
}

Compilation message

timeismoney.cpp:75:10: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(void) {
          ^
timeismoney.cpp: In function 'int main()':
timeismoney.cpp:76:26: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
     scanf("%d %d\n",&n,&m);
                     ~~   ^
timeismoney.cpp:76:26: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=]
timeismoney.cpp:78:74: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
         scanf("%d %d %d %d\n",&edge[i].s,&edge[i].e,&edge[i].t,&edge[i].c);
                               ~~~~~~~~~~                                 ^
timeismoney.cpp:78:74: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=]
timeismoney.cpp:78:74: warning: format '%d' expects argument of type 'int*', but argument 4 has type 'long long int*' [-Wformat=]
timeismoney.cpp:78:74: warning: format '%d' expects argument of type 'int*', but argument 5 has type 'long long int*' [-Wformat=]
timeismoney.cpp:119:31: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
     printf("%d %d\n",ret1,ret2);
                               ^
timeismoney.cpp:119:31: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long long int' [-Wformat=]
timeismoney.cpp:127:49: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
             printf("%d %d\n",edge[i].s,edge[i].e);
                              ~~~~~~~~~          ^
timeismoney.cpp:127:49: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long long int' [-Wformat=]
timeismoney.cpp:76:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d\n",&n,&m);
     ~~~~~^~~~~~~~~~~~~~~~~
timeismoney.cpp:78:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d %d %d\n",&edge[i].s,&edge[i].e,&edge[i].t,&edge[i].c);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1

100.0 / 100.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	5 ms	256 KB	Output is correct
3	Correct	4 ms	256 KB	Output is correct
4	Correct	5 ms	256 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	5 ms	384 KB	Output is correct
7	Correct	6 ms	384 KB	Output is correct
8	Correct	11 ms	768 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct
11	Correct	5 ms	256 KB	Output is correct
12	Correct	5 ms	256 KB	Output is correct
13	Correct	5 ms	256 KB	Output is correct
14	Correct	13 ms	384 KB	Output is correct
15	Correct	9 ms	384 KB	Output is correct
16	Correct	128 ms	384 KB	Output is correct
17	Correct	132 ms	456 KB	Output is correct
18	Correct	125 ms	504 KB	Output is correct
19	Correct	1063 ms	888 KB	Output is correct
20	Correct	1049 ms	892 KB	Output is correct