Submission #3836830

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Source Code Expand

#include <iostream>
#include <cstdio>
#include <vector>
#include <string>
#include <utility>
#include <queue>

using namespace std;

int main(){
    int n;
    scanf("%d",&n);
    vector<int> S(n,0);
    vector<int> E(n,0);
    vector<pair<int,int>> P(n);
    char d;
    int i;
    priority_queue<pair<int,int>,vector<pair<int,int>>,greater<pair<int,int>>> Q;
    for(i=0;i<n;i++){
        scanf("%d",&S[i]);
        S[i]=S[i]*2/10;
        S[i]=S[i]*10/2;
        scanf("%c",&d);
        scanf("%d",&E[i]);
        E[i]=(E[i]+4)*2/10;
        E[i]=E[i]*10/2;
        if(E[i]%100==60){
            E[i]=E[i]+40;
        }
        P[i].first=S[i];
        P[i].second=E[i];
        Q.push(P[i]);
    }
    int lastE=0;
    pair<int,int> p;
    int s,e;
    while(Q.size()>0){
        p=Q.top();
        Q.pop();
        s=p.first;
        e=p.second;
        if(lastE==0){
            if(s==0){
                printf("0000-");
            }
        }
        if(s>lastE){
            if(lastE==0){
                printf("%04d-",s);
                lastE=e;
            }
            else{
                printf("%04d\n%04d-",lastE,s);
                lastE=e;
            }
        }
        else{
            if(e>lastE){
                lastE=e;
            }
        }
    }
    printf("%04d\n",lastE);
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:12:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
                   ^
./Main.cpp:20:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&S[i]);
                          ^
./Main.cpp:23:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%c",&d);
                       ^
./Main.cpp:24:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&E[i]);
                          ^

Judge Result