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364.cpp
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364.cpp
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__________________________________________________________________________________________________
class Solution {
public:
int depthSumInverse(vector<NestedInteger>& nestedList) {
int res = 0;
vector<vector<int>> v;
for (auto a : nestedList) {
helper(a, 0, v);
}
for (int i = v.size() - 1; i >= 0; --i) {
for (int j = 0; j < v[i].size(); ++j) {
res += v[i][j] * (v.size() - i);
}
}
return res;
}
void helper(NestedInteger &ni, int depth, vector<vector<int>> &v) {
vector<int> t;
if (depth < v.size()) t = v[depth];
else v.push_back(t);
if (ni.isInteger()) {
t.push_back(ni.getInteger());
if (depth < v.size()) v[depth] = t;
else v.push_back(t);
} else {
for (auto a : ni.getList()) {
helper(a, depth + 1, v);
}
}
}
};
__________________________________________________________________________________________________
class Solution {
public:
int depthSumInverse(vector<NestedInteger>& nestedList) {
int res = 0;
vector<int> v;
for (auto a : nestedList) {
helper(a, 0, v);
}
for (int i = v.size() - 1; i >= 0; --i) {
res += v[i] * (v.size() - i);
}
return res;
}
void helper(NestedInteger ni, int depth, vector<int> &v) {
if (depth >= v.size()) v.resize(depth + 1);
if (ni.isInteger()) {
v[depth] += ni.getInteger();
} else {
for (auto a : ni.getList()) {
helper(a, depth + 1, v);
}
}
}
};
__________________________________________________________________________________________________