This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <iostream>
#include <bits/stdc++.h>
using namespace std;
#define lli long long int
#define debug(a) cout << #a << " = " << a << endl
#define debugsl(a) cout << #a << " = " << a << ", "
#define rep(i,a,b) for(int i = (a); i <= (b); i++)
#define repa(i,a,b) for(int i = (a); i >= (b); i--)
#define pll pair<lli,lli>
struct x {
lli tipo;
lli h[2];
lli apu;
lli res;
lli tam[2];
lli glob;
};
string st;
lli pos,cont,a;
stack<lli> pila;
vector<x> nodos;
x trash;
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cin >> st;
pos = 0;
cont = 1;
nodos.push_back(trash);
pila.push(0);
while (pos < st.size()) {
//debugsl(pos);
//debug(st[pos]);
a = nodos[ pila.top() ].apu++;
nodos[ pila.top() ].h[a] = cont;
nodos.push_back(trash);
pila.push(cont);
if(st[pos] == 'm') {
if (st[pos+1] == 'i') nodos[cont].tipo = 1;
else nodos[cont].tipo = 2;
cont++;
pos += 4;
continue;
}
nodos[cont].tam[1] = 0;
nodos[cont].tam[0] = 0;
nodos[cont].res = 1;
nodos[cont].glob = 1;
pila.pop();
while (nodos[pila.top()].apu == 2) {
lli act = pila.top();
pila.pop();
lli izq = nodos[act].h[0];
lli der = nodos[act].h[1];
nodos[act].glob = nodos[izq].glob + nodos[der].glob;
if (nodos[act].tipo == 1) {
//es un min(izq,der)
nodos[act].tam[0] = min(nodos[izq].tam[0], nodos[der].tam[0]);
nodos[act].res = ( nodos[izq].tam[0] + nodos[der].tam[0] + nodos[izq].res + nodos[der].res - 1 ) - nodos[act].tam[0];
nodos[act].tam[1] = nodos[act].glob - nodos[act].res - nodos[act].tam[0];
}
else {
//es un max(izq,der)
nodos[act].tam[1] = min(nodos[izq].tam[1], nodos[der].tam[1]);
nodos[act].res = ( nodos[izq].tam[1] + nodos[der].tam[1] + nodos[izq].res + nodos[der].res - 1 ) - nodos[act].tam[1];
nodos[act].tam[0] = nodos[act].glob - nodos[act].res - nodos[act].tam[1];
}
//debugsl(nodos[act].tam[0]);
//debugsl(nodos[act].res);
//debug(nodos[act].tam[1]);
pos++;
}
cont++;
pos += 2;
}
cout << nodos[1].res;
return 0;
}
Compilation message (stderr)
Main.cpp: In function 'int main()':
Main.cpp:37:16: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
37 | while (pos < st.size()) {
| ~~~~^~~~~~~~~~~
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