Submission #3141

#	Time	Username	Problem	Language	Result	Execution time	Memory
3141		club4208	탐사 (KOI13_probe)	C++98	19 / 19	3 ms	376 KiB

probe

#include <stdio.h>
#define INF 10000001
int a[1001],b[1001],d[1001],c[1001],n,k,i,j;
int min(int a, int b){
    if(a<b) return a;
    return b;
}
int main(){
//    freopen("input.txt", "r", stdin);
//    freopen("output.txt", "w", stdout);

    scanf("%d %d", &n, &k);
    for(i=1;i<=n;i++) d[i]=INF;
    d[0]=0;
    for(i=1;i<=k;i++){
        scanf("%d %d %d", &a[i], &b[i], &c[i]);
        a[i]--;
    }
    for(i=1;i<=n+1;i++){
        for(j=0;j<n;j++){
            if(d[j]!=INF) d[j+1]=min(d[j+1], d[j]+1);
        }
        for(j=0;j<n;j++){
            if(d[j+1]!=INF) d[j]=min(d[j], d[j+1]);
        }
        for(j=1;j<=k;j++){
            if(d[a[j]]!=INF) d[b[j]]=min(d[b[j]], d[a[j]]+c[j]);
        }
        for(j=1;j<=k;j++){
            if(d[b[j]]!=INF) d[a[j]]=min(d[a[j]], d[b[j]]-c[j]);
        }
    }
    if(d[1]<0) printf("NONE");
    else{
        for(i=1;i<=n;i++){
            if(d[i]-d[i-1]==1) printf("#");
            else printf("-");
        }
    }   
    return 0;
}

Compilation message (stderr)

probe.cpp: In function 'int main()':
probe.cpp:12:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &k);
     ~~~~~^~~~~~~~~~~~~~~~~
probe.cpp:16:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d %d", &a[i], &b[i], &c[i]);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 2.47 / 2.47
• Subtask 2: 2.09 / 2.09
• Subtask 3: 1.33 / 1.33
• Subtask 4: 5.13 / 5.13
• Subtask 5: 3.61 / 3.61
• Subtask 6: 4.37 / 4.37