Submission #506004

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Source Code Expand

#include <iostream>
#include <cstdio>
using namespace std;

int main(int argc, const char * argv[]) {
    int n,t[24*12+1]={},sh=0,sm=0,eh=0,em=0;
    cin >> n;
    for (int i=0; i<n; i++) {
        scanf("%02d%02d-%02d%02d",&sh,&sm,&eh,&em);
        t[sh*12+sm/5]++;
        t[eh*12+(em>0?(em-1)/5:-1)+1]--;
    }
    
    for (int i=1; i<24*12+1; i++) {
        t[i]=t[i-1]+t[i];
    }
    
    bool kr=false;
    for (int i=0; i<24*12+1; i++) {
        if (kr) {
            if (t[i]==0) {
                eh=i/12;
                em=(i%12)*5;
                printf("%02d%02d-%02d%02d\n",sh,sm,eh,em);
                kr=false;
            }
        }else{
            if (t[i]>0) {
                sh=i/12;
                sm=(i%12)*5;
                kr=true;
            }
        }
    }
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main(int, const char**)’:
./Main.cpp:9:51: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]

Judge Result