Submission #228276

# Submission time Handle Problem Language Result Execution time Memory
228276 2020-04-30T11:29:48 Z urd05 timeismoney (balkan11_timeismoney) C++14
75 / 100
2000 ms 1576 KB
#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;
int cnt=0;
 
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) {
    cnt++;
    if (p[a]<0) {
        return a;
    }
    p[a]=find(p[a]);
    return p[a];
}
 
void merge(int a,int b) {
    cnt++;
    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++) {
        cnt++;
        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 ((x!=x2)||(y!=y2))
        solve(x1,y1,x,y);
    if (x!=x1||y!=y1)
        solve(x,y,x2,y2);
}
 
main(void) {
    //mt19937 rd = mt19937((unsigned)chrono::steady_clock::now().time_since_epoch().count());
    //uniform_int_distribution<int> ran(0, 2147483647);
    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);
        //edge[i].s=ran(rd)%n;
        //edge[i].e=ran(rd)%n;
        //edge[i].t=ran(rd)%256;
        //edge[i].c=ran(rd)%256;
    }
    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:76:10: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(void) {
          ^
timeismoney.cpp: In function 'int main()':
timeismoney.cpp:79:26: 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:79:26: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=]
timeismoney.cpp:81:74: 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:81:74: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=]
timeismoney.cpp:81:74: warning: format '%d' expects argument of type 'int*', but argument 4 has type 'long long int*' [-Wformat=]
timeismoney.cpp:81:74: warning: format '%d' expects argument of type 'int*', but argument 5 has type 'long long int*' [-Wformat=]
timeismoney.cpp:126:31: 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:126:31: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long long int' [-Wformat=]
timeismoney.cpp:134:49: 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:134:49: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long long int' [-Wformat=]
timeismoney.cpp:79:10: 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:81:14: 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);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 5 ms 384 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 12 ms 640 KB Output is correct
9 Correct 5 ms 256 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 12 ms 384 KB Output is correct
15 Correct 9 ms 256 KB Output is correct
16 Execution timed out 2088 ms 1272 KB Time limit exceeded
17 Execution timed out 2087 ms 1144 KB Time limit exceeded
18 Execution timed out 2088 ms 1576 KB Time limit exceeded
19 Execution timed out 2074 ms 1148 KB Time limit exceeded
20 Execution timed out 2086 ms 1144 KB Time limit exceeded