CCF 小明放学

#include <bits/stdc++.h>
using namespace std;
long long r,y,g;
long long n;
char flag;
long long t;
long long tim = 0;
vector<char> v;
int main(){
//ifstream in;
//in.open("ryg.txt");
ios::sync_with_stdio(false);
cin.tie(0);
cin >> r >> y >> g;
int sum = r + y + g;
cin >> n;
while(n--){
cin >> flag >> t;
int temp = 0;
switch(flag){
case '0':
tim+=t;
break;
case '1':
temp = (t - tim )%(r+y+g);
while(temp < 0) temp += (r+y+g);
if(temp <= r + y) tim += temp;
break;
case '2':
t += r;
temp = (t - tim )%(r+y+g);
while(temp < 0) temp += (r+y+g);
if(temp <= r+y) tim += temp;
break;
default:
t += r + y;
temp = (t - tim )%(r+y+g);
while(temp < 0) temp += (r+y+g);
if(temp <= r+y) tim += temp;

}

}
cout << tim;
}