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[129] | 1 | //Author Antonio-Gabriel Sturzu |
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| 2 | |
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| 3 | #include<stdio.h> |
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| 4 | #include<vector> |
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| 5 | #include<time.h> |
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| 6 | #define pb push_back |
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| 7 | #define mp make_pair |
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| 8 | #define inf 500000001 |
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| 9 | |
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| 10 | using namespace std; |
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| 11 | |
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| 12 | int main() |
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| 13 | { |
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| 14 | int n,m,d[50001],a,b,c,i,j,flag=0; |
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| 15 | vector < pair<int, pair<int,int> > > muchii; |
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| 16 | pair <int,int> p; |
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| 17 | clock_t start,stop; |
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| 18 | FILE *f=fopen("bell.in","r"); |
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| 19 | |
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| 20 | fscanf(f,"%i%i",&n,&m); |
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| 21 | for(i=0;i<m;i++) |
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| 22 | { |
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| 23 | fscanf(f,"%i%i%i",&a,&b,&c); |
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| 24 | muchii.pb(mp(a,mp(b,c))); |
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| 25 | } |
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| 26 | fclose(f); |
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| 27 | |
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| 28 | start=clock(); |
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| 29 | d[1]=0; |
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| 30 | for(i=2;i<=n;i++) |
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| 31 | d[i]=inf; |
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| 32 | for(i=0;i<n-1;i++) |
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| 33 | { |
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| 34 | flag=0; |
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| 35 | for(j=0;j<m;j++) |
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| 36 | { |
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| 37 | p=muchii[j].second; |
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| 38 | if(d[muchii[j].first]+p.second<d[p.first]) |
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| 39 | { |
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| 40 | d[p.first]=d[muchii[j].first]+p.second; |
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| 41 | flag=1; |
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| 42 | } |
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| 43 | } |
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| 44 | if(flag==0) |
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| 45 | break; |
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| 46 | } |
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| 47 | stop=clock(); |
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| 48 | printf("Au trecut %f secunde\n",(double)(stop-start)/CLOCKS_PER_SEC); |
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| 49 | |
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| 50 | f=fopen("bell.out","w"); |
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| 51 | for(i=2;i<=n;i++) |
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| 52 | { |
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| 53 | if(d[i]==inf) |
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| 54 | d[i]=0; |
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| 55 | fprintf(f,"%i ",d[i]); |
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| 56 | } |
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| 57 | fprintf(f,"%s","\n"); |
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| 58 | fclose(f); |
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| 59 | return 0; |
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| 60 | } |
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