C++ 代码
#include<bits/stdc++.h>
#define ll long long
#define PI 3.141592653589793
#define E 2.718281828459045
#define HalF (l + r)>>1
#define lsn rt<<1
#define rsn rt<<1|1
#define Lson lsn, l, mid
#define Rson rsn, mid+1, r
#define QL Lson, ql, qr
#define QR Rson, ql, qr
#define myself rt, l, r
#define mem(a,b) memset(a,b,sizeof(a))
#define FOR( i , a , b ) for ( int i = a ; i <= b ; ++ i )
#define FO( i , n ) for ( int i = 0 ; i < n ; ++ i )
#define lowbit(a) ((a)&-(a))
#define PII pair<ll ,ll >
#define ft first
#define sd second
typedef unsigned long long ull;
const ll mod=10007;
const ll INF=0x3f3f3f3f3f3f3f3f;
const ll Max=1e5+10;
using namespace std;
ll t,n,m,l,k;
ll ans;
/*queue<ll> q;
stack<ll> s;
//升序队列
priority_queue <int,vector<int>,greater<int> > q;
//降序队列
priority_queue <int,vector<int>,less<int> >q;*/
int main()
{
ios::sync_with_stdio(false);
cin>>n>>m>>k;
ans=n*1440+m*60+k;
ll sum=11*1440+11*60+11;
if(ans<sum)
cout<<-1<<endl;
else cout<<ans-sum<<endl;
return 0;
}