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A.cpp
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59 lines (52 loc) · 1.72 KB
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#include <bits/stdc++.h>
#define FOR(i,a,b) for(int i=(a),_b=(b); i<=_b; ++i)
#define FORD(i,a,b) for(int i=(a),_b=(b); i>=_b; --i)
#define REP(i,a) for(int i=0,_a=(a); i < _a; ++i)
#define DEBUG(X) { cout << #X << " = " << X << endl; }
#define PR(A,n) { cout << #A << " = "; FOR(_,1,n) cout << A[_] << ' '; cout << endl; }
#define PR0(A,n) { cout << #A << " = "; REP(_,n) cout << A[_] << ' '; cout << endl; }
#define sqr(x) ((x) * (x))
#define ll long long
#define SZ(x) ((int) (x).size())
using namespace std;
int main() {
ios :: sync_with_stdio(0); cin.tie(0);
freopen("adjustment.in", "r", stdin);
freopen("adjustment.out", "w", stdout);
ll n;
int q;
while (scanf("%lld%d\n", &n, &q) == 2) {
ll sumRow = 0;
ll sumCol = 0;
set<int> rows, cols;
while (q--) {
char typ;
ll u;
scanf("%c %lld\n", &typ, &u);
if (typ == 'R') {
if (rows.count(u)) { // this row is already removed
puts("0");
continue;
}
rows.insert(u);
ll res = u * n + n*(n+1) / 2LL;
res -= SZ(cols) * u;
res -= sumCol;
printf("%lld\n", res);
sumRow += u;
}
else {
if (cols.count(u)) {
puts("0");
continue;
}
cols.insert(u);
ll res = u * n + n*(n+1) / 2LL;
res -= SZ(rows) * u;
res -= sumRow;
printf("%lld\n", res);
sumCol += u;
}
}
}
}